In this paper, based on the experimental data of maize, sunflower, Acacia confusa and Leucaena glauca under various treatments of air and soil temperature as well as soil water content, the effects of soil water content and temperature on plant root hydraulic conductivity were analyzed.

本文根據(jù)不同大氣環(huán)境溫度和土壤溫度及不同土壤含水率處理條件下的玉米、向日葵无一码黄色视频、臺灣相思、銀合歡的試驗資料另类亚洲欧美一区在线二区99，分析了土壤水分和溫度以及土壤水分與溫度共同作用對植物根系水分傳導(dǎo)的效應(yīng)日韩国产亚洲欧美有码。

By changing the fluid temperature and flow rate on the refrigerant/air side, the frost formation process on flat fin surface of an outdoor heat exchanger was traced dynamically using a microphotographic camera.

通過改變蒸發(fā)器制冷劑側(cè)和空氣側(cè)的流體溫度、流量等參數(shù)天堂网在线无码，利用顯微攝影機對室外側(cè)換熱器的平直翅片表面結(jié)霜過程進行動態(tài)跟蹤黄片中文字幕视频。

Firstly, the condensation heat transfer of steam-air mixture on the outside of a horizontal smooth tube and four square thread tubes is studied experimentally, and then, the condensation heat transfer on axisymmetrical surfaces as well as vertical plates of any kind of vapors containing noncondensable gases is analyzed theoretically.

本文作者先實驗研究含空氣的水蒸汽管外冷凝時水平光滑圓管和強化換熱圓管的傳熱特性，實驗時控制主流混合氣體的壓力和空氣的質(zhì)量成分欧美人妻一级A片，并探討建立實驗關(guān)聯(lián)式的方法亚洲午夜一区二区三区福利；然后對含不凝氣體的蒸氣在豎直平板和軸對稱壁面上冷凝換熱進行理論分析。

W ith Astronau t John Young piloting the 75- ton Colum bia w ith a stick and peda lm anually like agiant glider, the shuttle came to a halt on a dry lakebed on the desert air base after a 54 - hour spaceflight in which it circled the Earth 36 times.

宇航員約翰·揚像操縱一架巨型滑翔本論文由英語論文網(wǎng) www.51lunwen.org 整理提供機似地通過一根駕駛操縱桿和一個腳踏板靠手工操縱這艘重達75噸的哥倫比亞號降落在這里一個干涸的湖底上欧美一区永久视频免费观看。

For the demands of precooling and cold storage for keeping fruits, vegetables and flowers fresh, a new humid-cool system of water drenching air-cooler was designed based on the analysis on the characteristic of the current type of ice water humid-cool system and the synthesis performance were tested.

針對果蔬97成视频在线网、花卉等的預(yù)冷、冷藏濕冷保鮮技術(shù)過程要求欧美一级做片性视频，在綜合分析了目前流行的冰水濕冷系統(tǒng)特點的基礎(chǔ)上影音先锋日韩在线资源，設(shè)計了淋水式冷風(fēng)機濕冷系統(tǒng)，測試了該系統(tǒng)的綜合性能欧美日韩在在线视频。

With the research on the published material of Shanghai, Nanjing, Suz hou, Nantong, Hangzhou ＆Ningbo in the Yangtze River Delta , this paper makes com parative study on the features of their air pollution and the corresponding regu larity.

以長江三角洲地區(qū)上海中文字幕日本黄色视频、南京、蘇州天天插天天碰、南通欧美激情a片免费专区、杭州、寧波6城市公布的資料為研究對象人人爱人人操人人摸人人干人人爱，對各城市的空氣污染特點及規(guī)律進行了對比研究91超碰在线中出。

In the early game, Tengu's are better off on the ground. Tengus when in the skies serve as Anti Air, and when on the ground serve as light vehicles.

在游戲初期，天狗最好離開地面亚洲欧美国产一区二区，在空中的天狗是作為防空來使用的超碰97在线播放，在地上時它們是輕型車輛。

The effects of the reaction temperature , time ,pressure and air flow on the vield of o - toluic acid were evaluated on a medium sized Semi - coninuous bubbling bed reartor.

在中型半連續(xù)鼓泡床反應(yīng)器上a片网址免费观看，評價了反應(yīng)溫度国产精品日韩精品免费观看、反應(yīng)壓力天天综合亚洲色在线麻豆精品、空氣流量以及反應(yīng)時間對鄰甲苯甲酸單程收率的影響。

Hen walking on a high wire, you should concentrate on the way your body moves in the air.

走鋼絲時图片区偷拍区综合区小说区，你要集中精力于身體在空中的移動方式在线免费观看毛片网站。

A various lines are twined on the foot with the belt, be today the design that many shoe use season, this not only can make more calm show beautiful double leg, breathe fresh air, and also be in gentle in put on a few minutes lively.

用帶子在腳上纏繞出各種各樣的線條，是今季不少鞋子采用的款式国产三级精品三级在线区，這不但能使漂亮的雙腳更多的坦露全面黄片，呼吸新鮮的空氣，而且也在斯文中添上了幾分活潑性欧美日韩一区二区。