The converter combines the advantages of the PWM technique and soft-switching technique, the PWM is effected all over the whole loads range, and soft-switching is effeted only in the switching transition period, the ZVS of leading-leg is achieved by using the energy stored in leakage inductor of the transformer and the output inductor, the ZCS of lagging-leg is achieved by using a blocking DC capacitor, the ZVS and ZCS are achieved for the whole load ranges (5A~250A).

控制電路采用相移控制方式，綜合了PWM控制和軟開(kāi)關(guān)技術(shù)的優(yōu)點(diǎn)十八岁成年网站，在大范圍內(nèi)實(shí)現(xiàn)PWM控制，而在功率器件換流期間實(shí)現(xiàn)軟開(kāi)關(guān)換流，其中超前橋臂利用變壓器的漏感操国产熟女，實(shí)現(xiàn)了零電壓開(kāi)關(guān)，滯后橋臂利用隔直電容国产高清美女一级a毛片久久，實(shí)現(xiàn)了零電流開(kāi)關(guān)欧美XX网，并且整個(gè)變換電路能在（5A~250A）的范圍內(nèi)實(shí)現(xiàn)軟開(kāi)關(guān)工作條件，滿(mǎn)足弧焊電源負(fù)載變化大的特點(diǎn)A片区视频播放。

As a result, the achieved uncertainty of time measuring is±125 ps, demonstrating an accuracy improvement in magnitude of an order. The achieved precision of speed measuring is 0.1% of the scanning speed. In hardware design, the intactness of the camera's original structure has been maintained to the very extent, the facility of assembling and disassembling devices have been achieved.

在設(shè)計(jì)制作中采用了單色性和方向性好的激光作為光源麻豆AV最新在线观看网址，選取了高速響應(yīng)和有高速處理能力的一系列器件、芯片羞羞的漫画网页，因此時(shí)間測(cè)量的精度達(dá)到了±125 ps国产激情全集在线观看网站，比以往的測(cè)試方法提高了1個(gè)數(shù)量級(jí)以上，速度測(cè)量精度達(dá)到掃描速度的0.1%影音先锋在线观看日韩AV。

In order to get the more accurate data of atmospheric capacity about this type of area, such as Yueyang, this paper analyzed the characteristics of Yueyang meteorology, gathered the features of atmospheric pollution sources, worked out the main problems in environmental protection. In addition, we analyzed the rule of atmospheric transport and diffusion, and took the Frequency of lake and breeze to modify the data of atmospheric capacity of Yueyang, which was achieved by A-P index, and compares the modified data of atmospheric capacity with the data of atmospheric capacity achieved by multi-source. The results indicated that according to the fact of lake and breeze, taking the frequency of lake and breeze to modify the data of atmospheric capacity of the field with stable lake and breeze, which is achieved by A-P index, made the atmospheric capacity more accurate. Accordingly, the result could be more reliable if the modified data is taken to calculate the atmospheric capacity when we assess the impact on the environment of the field with stable lake and land breeze.

為準(zhǔn)確地求得這一類(lèi)型地區(qū)的大氣環(huán)境容量日韩天天天添日日，本文研究了岳陽(yáng)市城區(qū)大氣環(huán)境的主要特點(diǎn)，收集大氣污染源數(shù)據(jù)并進(jìn)行分析人人操操BB，查明岳陽(yáng)市城區(qū)主要環(huán)境問(wèn)題性爱欧美一区二区，分析岳陽(yáng)市城區(qū)主要大氣污染物的遷移轉(zhuǎn)化規(guī)律，對(duì)A-P指數(shù)法求得的岳陽(yáng)市大氣環(huán)境容量值用湖陸風(fēng)頻率進(jìn)行修正黄色视频在线观看免费最肉最A，并將修正后的大氣環(huán)境容量與多源模型(區(qū)域大氣環(huán)境容量計(jì)算模型)求得的大氣環(huán)境容量進(jìn)行對(duì)比亚洲秋霞三区色电影，得出結(jié)論：根據(jù)湖陸風(fēng)環(huán)流情況下的大氣擴(kuò)散方式，對(duì)有穩(wěn)定的湖陸風(fēng)環(huán)流的地區(qū)偷拍片第一页，采用湖陸風(fēng)頻率修正A-P指數(shù)法求大氣環(huán)境容量操死你亚州三级，進(jìn)一步提高了計(jì)算的準(zhǔn)確性。

Firstly,the wavelet-based contourlet coding using an SPIHT-like algorithm is utilized on the plain image,and as a result,the compressed datum stream could be achieved which is then mapped to a 3D bit matrix. Afterward,a chaotic sequence is generated by Lorenz chaotic map,and it is preprocessed to a bit sequence which is used to permute and substitute the elements of the 3D bit matrix achieved above. In the end,the processed 3D matrix is mapped back to datum stream,and the encrypted compressed image could be achieved if decoding and inverse transform are performed on the datum stream.

首先采用基于小波的Contourlet變換的類(lèi)等級(jí)樹(shù)集合分割編碼算法對(duì)明文圖像進(jìn)行壓縮可以免费看的AV网站，得到壓縮數(shù)據(jù)流精品三级在线视频，然后將壓縮數(shù)據(jù)流映射為一個(gè)三維位矩陣；利用Lorenz混沌映射產(chǎn)生混沌序列男女羞羞在线永久免费观看，并對(duì)其進(jìn)行預(yù)處理得到比特值序列亚洲三级片免费观看视频，根據(jù)比特值序列對(duì)上述三維位矩陣進(jìn)行置亂和替代操作；將置亂和替代后的位矩陣重新映射為數(shù)據(jù)流天天色综合网址，并對(duì)其進(jìn)行解碼和反變換操作清纯唯美亚洲色图，得到加密后的壓縮圖像。

In the course of establishing standard operating procedure, The temperature, time , the feasibility without decorticating and efficiency were investigated when alliinase was deactivated used a dry heating apparatus in tunnel type, but the efficiency can be achieved less than 70%, need to be improved; The reformative cribriform plate has been proved to be good in practice result in pulping enzyme-deactivated garlic without dehulling; The extraction efficiency achieved more than 90% when volumic ratio of 20% alcohol and water is 3 I 1 and 2:1 was adopted to extract alliin two times respectively; During exact filtration, the ratio of diatomite in precoating and filtration was 3% and 1% respectively, the losses of alliin adsorbed by diatomite in extraction solution were not remarkable. In the stage of alliin isolation by ion exchange resin, three simple and sensitive detected measures were successfully adopted to control the whole process; the efficiency of alliin isolation was similar to laboratory results; The alliin yield was over 50% in acidic fractions and the purity quotient of alliin achieved above 50% after drying; Furthermore, the phenomenon was found that losses of alliin were seriously affected by the temperature and time periods in concentration.

在制定中試生產(chǎn)標(biāo)準(zhǔn)操作規(guī)程中韩国美女黄色网站，考察了隧道式干熱烘干機(jī)殺酶的溫度国产三级片免费看、時(shí)間和效率国产有色又黄又爽的免费视频，干熱滅酶效率只能達(dá)到70%，待改進(jìn)国产精品毛片AV喷奶水；改良的篩板使帶皮打漿效果良好欧美日韩黄色视频，證明非脫皮熟蒜打漿的可行性，減少了工序十八禁看黄色，降低了成本色色色,免费视频；提取過(guò)程中，20%酒精分別1∶3和1∶2提取2次免费看欧美黄色网站，效率達(dá)90%以上久久国产欧美日韩大片；硅藻土板框過(guò)濾時(shí)，探索了精濾過(guò)程中提取液中預(yù)涂和過(guò)濾時(shí)硅藻土的比例分別為3%和1%国产剧情在线一区，并考察硅藻土對(duì)蒜氨酸的吸附損失欧美性大片视频免费播放在线，濾液澄明度良好，蒜氨酸損失很少a毛片在线观看；在樹(shù)脂吸附分離階段高清无码一道本，采用三種簡(jiǎn)便靈敏檢測(cè)手段控制生產(chǎn)過(guò)程，分離蒜氨酸的效果與實(shí)驗(yàn)室一致99精彩视频这里有，酸性流分中蒜氨酸收率可達(dá)50%以上欧美十八性XX性高潮喷，干燥后蒜氨酸純度達(dá)50%以上；試驗(yàn)發(fā)現(xiàn)濃縮蒜氨酸洗脫液時(shí)溫度和濃縮時(shí)間對(duì)蒜氨酸損失的具有很大影響人人人人人人操人。

Results Of the 50 melasma patients,42 people(84%) achieved more than 50% improvement,of whom 27 people(54%) achieved 75%-100%clearance,and 3 of them achieved 100%clearance.

結(jié)果50名病例均完成治療及隨訪(fǎng)欧美精品一区二区黄色视频。治療結(jié)束時(shí)共42名(84%)獲得50%以上的改善，其中27名(54%)獲得75%以上的改善黄色视频在线观看历史aaa，3名原有色斑完全消退(100%)可以直接看的毛片网址。

I visited my mother, I asked him about ascribed status and achieved status point of view.

我訪(fǎng)問(wèn)了我的母親，我問(wèn)他對(duì)于ascribed status and achieved status的觀點(diǎn)欧美精品性欧美。

Results With respect to the numbers and lower levels of the interferences within the driving source when FIT was powered respectively by the three power sources, the battery output 6 interferences, the highest power of which achieved -78.25 dBm; the linear power source output 6 interferences, the highest power of which achieved -67.11 dBm; the switching power source output 15 interferences, the highest power of which achieved -35.83 dBm.

結(jié)果：就3種電源分別供電下的激勵(lì)源中的干擾的個(gè)數(shù)和功率水平而言欧美性爱疯狂xxxxx18，電池供電下的激勵(lì)源中存在6個(gè)干擾，功率高達(dá)－78.25dBm最新黄色网站又大又粗；線(xiàn)性穩(wěn)壓電源供電下的激勵(lì)源中存在6個(gè)干擾小草永久免费看视频，功率高達(dá)－67.11dBm欧美在线www；開(kāi)關(guān)穩(wěn)壓電源供電下的激勵(lì)源中存在15個(gè)干擾一级性爱视频免费看，功率高達(dá)－35.83dBm。

Based on the characteristics of parameterized design and key technologies of knowledge based engineering, and specially according to the characteristics of the construction, figure, assembly-parameter of bicycle frame design, the article has achieved repeated using of experiential parameter and knowledge by adopting methods such as automatic reading experiential datasheet, computing parameter by making use of program, manual data-input or modifying and so on. Based on analyzing the characteristics of Rear End design and the associated characteristics with Chain Stay and Seat Stay, different design methods are analyzed in detail, and rapidly assembling of Rear End, Chain Stay and Seat Stay is achieved by using the method of combining top-down-assembly with down-top-assembly method. Based on analyzing special technologies and UDF characteristics, the repeated using of different sectional shapes by using UDF technology on the tube section design is also achieved, and this will greatly shorten the time spent on fixing the dimensions and orientations on sketches.

在探討了參數(shù)化設(shè)計(jì)技術(shù)特點(diǎn)和知識(shí)工程關(guān)鍵技術(shù)的基礎(chǔ)上日本88黄网站，針對(duì)自行車(chē)車(chē)架設(shè)計(jì)中的結(jié)構(gòu)在线观看91香蕉国产免费、形狀、裝配參數(shù)特點(diǎn)国产性交大全，分別采用了讀入經(jīng)驗(yàn)數(shù)據(jù)表www.99riav45、參數(shù)程序求解性爱黄色视频欧美、手工錄入或修改方法實(shí)現(xiàn)車(chē)架設(shè)計(jì)經(jīng)驗(yàn)參數(shù)和知識(shí)的重復(fù)利用；在分析自行車(chē)后叉片設(shè)計(jì)特點(diǎn)及與平538在线国产、立叉的關(guān)聯(lián)特性的基礎(chǔ)上欧美日韩一区二区妖精视频，對(duì)不同的設(shè)計(jì)方案進(jìn)行了詳細(xì)分析，并采用自頂向下和自底向上相結(jié)合的方法本一黄色视频，實(shí)現(xiàn)了后叉片的快速裝配定位與平又黄又刺激的网站、立叉設(shè)計(jì)相關(guān)聯(lián)；在分析了特征技術(shù)和UDF特點(diǎn)的基礎(chǔ)上国产雏18女破苞在线播放，將UDF用于管件截面的設(shè)計(jì)上欧美性爱黄色一级片视频，使各種截面形狀能不斷重復(fù)利用，大大節(jié)省了約束草圖尺寸和位置的時(shí)間大屌色色。

The research result is as follow: The higher removal efficiency oncoliform in the seawater can be achieved by using chlorine dioxide as disinfectantthan sodium hypochlorite under the same dosage and reaction time, the removalefficiency of coliform can be achieved about 97.89% by using sodium hypochloritewith dosage of 3.0mg/L, and it can be achieved about 99.94% by chlorine dioxideunder the same dosage.

結(jié)果為：二氧化氯對(duì)海水中大腸菌群的去除率較次氯酸鈉高查查黄色视频毛片，3.0 mg/L的次氯酸鈉對(duì)海水中大腸菌群的去除率為97.89%，而相同濃度的二氧化氯對(duì)海水中大腸菌群的去除率則高達(dá)99.94%色哟色哟网站。