He has obtained the huge success in the desert, not only improved the bad ecological environment, moreover also attracted large quantities of " to constrain " and the painful commercial jorum goes to the barren land to influence the sentiment, now Song Jun the desert ecology explores tourist area, feared national alone this one, the desert golf course in the nation also is the fur collar water, made money goes without saying.

他在沙漠里取得了巨大的成功国产黄大片手机在线观看，不僅改善了惡劣的生態(tài)環(huán)境五月婷婷超碰在线，而且還吸引了大批"壓抑"和痛苦的商業(yè)大腕前往不毛之地陶冶情操欧洲无码熟妇，現(xiàn)在宋軍的沙漠生態(tài)探險(xiǎn)旅游區(qū)亚洲熟妇中文无码精品，恐怕全國(guó)獨(dú)此一份日本aa，沙漠高爾夫球場(chǎng)在全國(guó)也是風(fēng)毛菱角免费观看中国A片,黄色视频，賺錢(qián)自不待言。

In this paper the sands' physics-mechanics properties were measured with the sample of northwest desert in China, taking WTC5120TSM desert vehicle as the object to study the desert trafficability, presented the formulas of tangential tractive force and motion resistance, taking the pothook tractive force and the traction coefficient as the evaluating indicators of trafficability.

以我國(guó)西北部沙漠為樣地測(cè)定了沙土的物理－力學(xué)性質(zhì)日韩精品更新资源在线观看视频，以WTC5120TSM沙漠車為對(duì)象進(jìn)行了沙漠通過(guò)性的研究神马影院成人免费网站推荐视频，給出了切線牽引力和行駛阻力的計(jì)算會(huì)式，以掛鉤牽引力和牽引性系數(shù)作為通過(guò)性的評(píng)價(jià)指標(biāo)。

In this paper the sands＇ physics-mechanics properties were measured with the sample of northwest desert in our country, taking WTC5380TSM desert vehicle as the object studied the desert trafficability, presented the formulas of tangential tractive force and motion resistance, taking the pothook tractive force and the coefficient of traction as the evaluating indicator of trafficability.

淮陰工學(xué)院.国产综合网在线观看，江蘇淮安223301摘要：以我國(guó)西北部沙漠為樣地測(cè)定了沙土的物理一力學(xué)性質(zhì)亚州中文字幕操喷，以WTC5380TSM沙漠車為對(duì)象進(jìn)行了沙漠通過(guò)性的研究，給出了切線牽引力和行駛阻力的計(jì)算公式久久久久精品视频这里只有精品，以掛鉤牽引力和牽引性系數(shù)作為通過(guò)性的評(píng)價(jià)指標(biāo)人人澡人人摸人人干。研究表明，WTC5380TSM沙漠車在該沙漠中有較好的通過(guò)性能人人操人人莫人人干，能夠滿足交通運(yùn)輸作業(yè)的要求国产人妖。

Saline cistanche, always named" ginseng in desert", is a parasitic crude drug with herb in desert and rare pl mainly growing on barren salt lick, dry river valley or Gobi desert in Xinjiang and Siberia, Russia under national key protection list.

素有"沙漠人參"之稱的肉蓯蓉是沙漠草本植物寄生藥材，是國(guó)家重點(diǎn)保護(hù)的稀有植物欧美性爱A√视频在线，主要生長(zhǎng)在新疆和俄羅斯的西伯利亞等地區(qū)寸草不生的鹽堿地中文在线播放、河溝或戈壁灘上。

Saline cistanche, always named" ginseng in desert", is a parasitic crude drug with herb in desert and rare plant mainly growing on barren salt lick, dry river valley or Gobi desert in Xinjiang and Siberia, Russia under national key protection list.

素有"沙漠人參"之稱的肉蓯蓉是沙漠草本植物寄生藥材五级全黄的视频在线观看，是國(guó)家重點(diǎn)保護(hù)的稀有植物白丝袜91在视频，主要生長(zhǎng)在新疆和俄羅斯的西伯利亞等地區(qū)寸草不生的鹽堿地、河溝或戈壁灘上激情图区亚洲。

The main results are: construction of Tarim desert highway shelter-forest promoted soil microbial development, and with increase of plantation time of the shelter-forest, the quantity, fatty acid diversity index of soil microbe and diversity index of bacterial DNA segment enhanced notably. As to soil microbial community structure, bacteria are dominant population with amounting for over 80% of total soil microbe, and fungi is not more than 1% of total soil microbe, but soil microbial community structure was different among three soil layers. The conclusions from study methods of conventional culture, biological marker and molecule biology were almost identical, which illuminates that construction of Tarim desert highway made soil microbial activity enhance and so promote nutrient cycle and utilization of Tarim desert highway shelter-forest land.

結(jié)果表明欧美国产视频，塔里木沙漠公路防護(hù)林的建設(shè)促進(jìn)了風(fēng)沙土土壤微生物的發(fā)育，隨著防護(hù)林定植年限的增加玖玖爱视频在线，土壤微生物數(shù)量国产91性交二区大片、脂肪酸和細(xì)菌DNA片段的多樣性指數(shù)明顯增大；土壤微生物區(qū)系組成中pirn免费毛片在线，細(xì)菌是優(yōu)勢(shì)類群日韩美女观看成人片视频在线观看免费，占微生物總數(shù)80%以上，而真菌很少特级毛片A片全部免费播直播，不到微生物總數(shù)1%综合小说网，但在不同土層間有所差異；傳統(tǒng)培養(yǎng)法與現(xiàn)代生物標(biāo)記和分子生物學(xué)方法對(duì)塔里木沙漠公路防護(hù)林地土壤微生物多樣性的研究結(jié)果基本一致1024精品久久久久久久久，說(shuō)明塔里木沙漠公路防護(hù)林的建設(shè)使林地土壤生物活性有所增強(qiáng)殴美性久久久，有利于林地土壤養(yǎng)分循環(huán)與利用。

The results indicated that the earth's surface temperature and air temperature of the desert comparing the oasis of the variety range are higher and ascend and descend of the speed are quicker; As the ascend and descend changes of air relative humidity and temperature are different at each observation spot, the variety curve of the air pressure of daytime shows the single type of wave; At each observation spot the predominant direction of wind was mainly souther, still having the southeast or southwester at 12:00-18:00; Wind speed almost is 0 at 20:00; The clean radiation at the morning and the evening of desert are higher than in oasis, the clean radiation in oasis in the daytime is bigger than in desert.

結(jié)果表明欧美操爱视频，沙漠地表面溫度和氣溫升降速度比綠洲觀測(cè)點(diǎn)要快久久久久久精品免费免费69九九、變化幅度大；由于各觀測(cè)點(diǎn)空氣相對(duì)濕度和溫度升降度不同插插一级黄色，使得各觀測(cè)點(diǎn)的氣壓升降幅度也不同操,com，白天氣壓的變化曲線呈單蜂型；各觀測(cè)點(diǎn)在12：00到18：00期間主導(dǎo)風(fēng)向主要是南風(fēng)新淫色综合网站，還有東南或西南風(fēng)99久久这里只有精品，在20：00時(shí)風(fēng)速幾乎為0欧洲欧洲成人片在线观看；早上和晚上沙漠的凈輻射高于綠洲，白天近地面凈輻射綠洲大于沙漠欧美极品专区高清在线观看；對(duì)綠洲氣象要素時(shí)空效應(yīng)特征分析最新国产主播精品福利直播，為棉花等綠洲優(yōu)勢(shì)作物的播種期、物候期欧美一级多人婬片人妻欧美大片、作物生育及生理生態(tài)特性具有一定的指導(dǎo)意義欧美日韩va视频。

Sahara is divided into western Sahara, the central Ahaggar Mountains , the Tibesti massif the Ar Mountains (a region of desert mountains and high plateaus), Tenere desert and the Libyan desert.

撒哈拉沙漠分為幾部分：西撒哈拉；中部高原山地（包括位于阿爾及利亞的阿哈加爾高原igao.com为爱搞点激情，位于尼日爾的艾爾高原和位于乍得的提貝斯提高原欧美性爱激情四射啊；東部是最為荒涼的區(qū)域，為特內(nèi)雷沙漠和利比亞沙漠在线国产福利。

Based on the experiments of physical properties of desert sand,the driving force of running desert wheeled cross-country vehicle were obtained by calculating force between tire and sand.The experiments about pressuring grass resistance of lengthways lay out grass mechanism were done.According to the vehicle terramechanics theory,desert trafficability of straw-checkerboard sand barriers paving robot was analyzed.

本文在測(cè)試沙土物理特性和選擇沙漠車的基礎(chǔ)上黄片视频爽爽爽拍，依據(jù)車輛地面力學(xué)理論，通過(guò)分析嘿咻嘿咻无码人妻视频、實(shí)驗(yàn)和計(jì)算草方格鋪設(shè)機(jī)器人的行駛阻力以及牽引車的牽引力黄色aaaa，討論防風(fēng)固沙草方格鋪設(shè)機(jī)器人在沙漠中的通過(guò)性。1沙土特性與牽引車參數(shù)1.1沙土的物理特性該機(jī)器人是通過(guò)輪胎與地面的相互作用力推動(dòng)其前進(jìn)免费看huang片的网站。

When the architect Frank Lloyd Wright arrived the desert in the Arizona, he sensed the gobi, the vast desert, the storm and the trace of Indian tribe, and perceived an imago of vast desert, alone boat and undulant tents, and transferred to be the architecture image of Taliesin West.

當(dāng)賴特來(lái)到亞利桑那的沙漠里国产a级毛片黄片，感受到戈壁、大漠一级全裸操逼免费视频、風(fēng)暴和印第安原始部落曾生活在此的印跡欧美日韩一区激情小说图片，他獲得了大漠、孤舟a亚洲男人的天堂黄色美丽网站、帳幕起伏的意象中国免费的一级A片，轉(zhuǎn)化成西塔里塔的建筑形象。