In the cold and warm air mass itself, although there are different temperatures, but is relatively small, and temperature difference between cold and warm air mass is very great.

在冷暖氣團(tuán)內(nèi)部亚洲三级片中文字幕，雖然溫度也有差異，但相對來說是很小的四虎4hutv最新884a，而冷暖氣團(tuán)之間的溫差卻非常大欧美色欧美亚洲另类少妇。

The effect of the inlet parameters of air, air mass flow rate and spray water rate on the performance of closed cooling tower is discussed in the paper. A mathematical model for evaluating heat and mass transfer performance of closed cooling tower is set up. The analytical solution of differential equations is derived.

目的 分析閉式冷卻塔內(nèi)各參數(shù)，即空氣焓值亚欧刺激视频在线播放、含濕量色友视频在线观看免费、冷卻水溫等的分布情況；探討空氣入口參數(shù)日韩欧美爱爱一区二区、空氣質(zhì)量流量国产高清在线视频一区二区、噴淋水量對閉式冷卻塔冷卻性能的影響規(guī)律。

Cavitation erosion is related to bubbles.Bubbles pop out from drilling fluid in vacuum conditiun and form air mass against cyclinder well.For low resistance to pressure,air mass happen explosion when compressed,making cyclinder wall cavitated.

氣蝕發(fā)生的條件與氣泡密切相關(guān)在线观看成人短视频网站，氣泡在真空時從鉆井液中溢出形成氣團(tuán)男人的天堂综合网，并緊靠缸壁；氣團(tuán)在壓縮時因承壓能力低而產(chǎn)生爆炸日韩3级电影网，從而引起缸壁產(chǎn)生氣蝕作用国产视频33区。

But with increasing temperature,homolysis is enhanced,especially for PPTA.When the temperature reaches 1000℃,PPTA takes higher mass loss than PMIA.In both inert gas and air,mass spectra of volatiles are obtained,and PMIA and PPTA mostly show the same mass signals.

在低降解溫度時，采用水解機(jī)制解釋了PMIA纖維三步的失重過程和較低的耐熱性能打开免费黄色网站在线观看；而隨著溫度升高欧美成αⅴ人在线视频，均裂機(jī)制增強(qiáng)，導(dǎo)致PPTA纖維在1000℃時的失重大于PMIA纖維日本人人干。

The characteristic of which thermal air flow sensor can directly measure air mass flow is used,a hot-wire air flow sensor which can be applied to intake system for an internal combustion engine is designed.

利用熱式空氣流量傳感器直接測量空氣質(zhì)量流量的特點(diǎn)AV野狼，設(shè)計了一種應(yīng)用于測量內(nèi)燃機(jī)進(jìn)氣系統(tǒng)進(jìn)氣量的熱線式空氣流量傳感器。

Winter, mainly in Mainland China Polar continental polar air mass, or variability of air masses under the control of the mainland, at 80 ~ 90 ° E for many high-altitude ridge of high pressure, while the coastal areas at high altitudes often a great groove, ridge ago, after the trough of cold air southward continually strengthened cold high ground, warm up the oceans for many low-pressure control.

冬季黄色A片视频，我國大陸主要為極地大陸氣團(tuán)或變性極地大陸氣團(tuán)所控制大黑吊性爱，在80～90°E高空多為高壓脊，而沿海高空常為一大槽A片网站导航，脊前av日韩免费网址、槽后的冷空氣不斷南下，加強(qiáng)了地面的冷高壓全国精品第一区黄片，溫暖的海洋上多為低氣壓所控制手机黄网欧美高清。

Bozhou lies in south of the North Temperate Zone, it is mainly affected by tropic oceanic air mass and polar continental air mass, with a climate of seasonal temperate semi-humid monsoon.

亳州市地處北溫帶南部，屬暖溫帶半濕潤季風(fēng)氣候久久免费视频免费看，為熱帶海洋氣團(tuán)和極地大陸氣團(tuán)交替控制接觸地帶国产热情网站。

First, we adopt MEMS technology to fabricate micro venturis with different widths of 150 and 200 um respectively and utilize FLUENT software to analyze the flow fields. Air was set as the working fluid and the air mass flow rate of inlet is changed to obtain the pressure drop between inlet and outlet. When a flow passes through the throat, the backflow results in the symmetric separations occur and grow with the increase of mass flow rate.

在微文氏管的研究部分，首先利用微機(jī)電制程技術(shù)制造出兩種不同尺寸的微文氏管av免费在线观看网站大全，寬度分別為150及200微米久久国产精品免费一区二区三，開口角度各為45°，總長則為10 mm，再以空氣作為工作流體www.玖玖爱免费视频，利用不同質(zhì)量流率來量測微文氏管進(jìn)出口的壓力差并配合FLUENT軟體分析觀察其流場分布的情況毛片总合网。

In order to satisfy the real-time control of air/fuel ratio,this model was simplified based on two supposals as follows:(1) the intake air mass flow rate has a linear form with the product of the two established expressions,the throttle angle expression and the intake air pressure expres...

為滿足基于模型進(jìn)行空燃比實時控制的要求，基于以下兩個假設(shè)對模型進(jìn)行了簡化：(1)假設(shè)進(jìn)氣流量與模型所建立的關(guān)于節(jié)氣門開度和進(jìn)氣壓力的表達(dá)式的乘積成線性關(guān)系china农村野外妇女BBw；(2)充量系數(shù)和進(jìn)氣壓力的乘積與進(jìn)氣壓力成線性關(guān)系男插女激情免费网址在线观看。

The riser total pressure drop and apparent solids holdup increase with the solids-to-air mass flow ratio, and there is greater effect of solids-to-air mass flow ratio on apparent solids holdups in lower part of riser.

此外，床層總壓降和截面平均顆粒濃度隨固氣質(zhì)量比的增加而增加国产无套推油按摩女视频推油，在上升管下部截面平均顆粒濃度受固氣質(zhì)量比的影響比上部大国产日韩欧美妖亚欧在线。