Therefore, the relation between dripper discharge and crop-root distribution is the basis for determining technique parameters of drip irrigation.

土壤濕潤區(qū)與作物根系分布之間的關系是確定滴灌濕潤比的理論依據(jù)欧美日韩国产综合在线一区，而土壤濕潤區(qū)形狀直接受滴頭流量的控制销魂美女一级毛片，因此丝袜AV观看一区，滴頭流量與作物根系分布之間的關系是確定滴灌技術參數(shù)的依據(jù)人人操人人骚。

In the design of drip irrigation system, reasonable dripper discharge should be chosen and irrigation water should be supplied in order to make soil reach the designed moisture uniformity; the moisture uniformity of soil along the drip irrigation pipe should be controlled mainly.

文中提出了應用于工程設計中的滴頭流量設計模式應滿足的要求噜噜色噜噜网色妞网av。在滴灌系統(tǒng)設計中黄色A片区全部免费，要使土壤達到設計的濕潤均勻度就應選擇合理的滴頭流量，并設計出合理的灌水量亚洲小说在线综合专区，而且應主要控制沿滴灌管方向的土壤濕潤均勻性免费a片小视频网站。

In the design of drip irrigation system, the choice of dripper discharge affects the irrigating water quality and the costs of drip irrigation engineer, while the soil moisture uniformity for line source drip irrigation affects crops water use directly, and it is the foundation to design drip irrigation system.

滴灌系統(tǒng)設計中，滴頭流量的選擇關系到灌水質(zhì)量和滴灌工程的造價問題农村野外操逼片儿。；而線源滴灌土壤濕潤均勻性問題影響到滴頭流量的選擇日本最新黄色网站，并直接影響著作物對水分的利用，是滴灌系統(tǒng)設計的基礎久久A级片。

The results indicated that irrigation water supply and dripper discharge had extreme effects on the moisture uniformity in soil along the drip irrigation pipe direction for line source drip irrigation, the soil moisture uniformity would be raised with the increase of irrigation quantity and dripper discharge.

試驗表明：線源滴灌下国产激情MV无码一级毛片，灌水量、滴頭流量在那里可以看毛片、滴頭間距對沿滴灌管方向的土壤濕潤區(qū)均勻性影響最大午夜视频黑屌，隨著滴頭流量或灌水量的增加以及滴頭間距的減小，濕潤均勻性提高国产做a视频在线不卡。

In this paper,a numerical solution for radial journal bearings with liquid hydro-dynamic lubrication is analysed, numerical expressions for oil fiton pressure, bearing capacity , friction moment,and leakage at the bearing ends are derived,bearing capacity,flow rate, friction moment,and eccentric angle of the load under 14 different temperatures and 14 different load eccentricities are calculated.

采用數(shù)值法分析解算液體動壓向心滑動軸承幼呦精品，推導了油膜壓力、承載力日韩精品爆乳激情在线观看网站、摩擦力矩和端泄流量等的數(shù)值表達形式一级伦奷视频A片试看30秒，計算了14個不同溫度點及14種不同偏心率下的承載力、流量能看黄色视频的网址、摩擦力矩国产黄色网站免费在现观看、載荷偏位角，并通過AUTOCAD繪制了它們之間的影響曲線亚洲综合小说图片。認為偏心率及油溫對承載力影響很大欧美一级特黄大片做受在线观看s，設計時應加以限制。

Considering the electrovalence, the curve of water consumption and the reliability of water supply, this paper respectively sets up the model based on the maximal flux and the model based on the expectation flux. It takes yearly expenditure converting value and yearly cistern converting value as target function and takes continuity equation, velocity of flow and compression resistance of cast iron pipeline as restrictions and sets up the PGA model on optimal design of water supply networks.

考慮到峰谷電價一级毛片,A级毛片、用水量變化曲線及用水可靠性因素的影響婷婷操操b，分別建立了以最高時流量設計管網(wǎng)的模型和以期望時流量設計管網(wǎng)的模型，以年費用折算值加上清水池年造價折算值為目標函數(shù)男把女日出了白浆的免费视频，以連續(xù)性方程激情另类小说、管中流速和鑄鐵管耐壓值等為約束條件，進行并行遺傳算法對給水管網(wǎng)優(yōu)化設計的實現(xiàn)影音先锋av在线资源。

Test and analysis show that, the distribution patterns of the tangent veloctiy fields in the big cone area and the small cone area, which are comprised of para-free vortex and para-forced vortex, are basically identical without a change of the radius of the boundary surface; with the increase of the angle of the small cone, the para-free vortex area decreases and the para-forced vortex area increases, and the emulsifiability of the fluid drips increases with the increase of velocity gradient; the tangent velocity increases with the increase of inlet flow, and the maximum tangent velocities of both the big cone area and the small cone area are 4.94 times of the inlet flow; and the maximum tangent velocity increases with the increase of the split ratio and with the radius of the boundary surface not changed.

試驗分析表明最新热播无码视频。，大錐段和小錐段切向速度分布規(guī)律基本相同免费黄色视频A片子，均由準自由渦和準強制渦構(gòu)成，分界面半徑rm沒有變化国产初高中精品网；隨著小錐角θ的增加欧美一级abbb，準自由渦區(qū)縮小，準強制渦區(qū)擴大鲁在线视频，速度梯度增加會加大液滴的乳化程度欧美性爱免费看视频；隨入口流量增加，切向速度增大色色色8，經(jīng)擬合得出大錐段和小錐段的最大切向速度均為入口流量的4.94倍欧美三级电影网址；分流比加大，分界面半徑基本不變亚洲操大逼综合网，最大切向速度增加欧美视频性交。

We had also performed numerical simulations to study energetic particle injection at L=3.5 to discuss the effect of different pulse parameters on particle injection.

我們也完成在 L=3.5 的電子流量模擬，討論不同的脈沖參數(shù)對於粒子傳輸?shù)挠绊懞碗姶琶}沖傳輸粒子至該處的可能性免费看黄色网站视频，以了解是否此電磁脈沖模型可應用於了解磁暴時国产精品资源站没想到这么骚，在 L=3.5 處高能粒子流量增加的可能性。

From an economic point of view, a solvent having a small minimum solvent flow is a better entrainer and should result in a lower cost design than a solvent having a large minimum solvent flow.

從經(jīng)濟的角度看www.国产无码，最小溶劑流量較小的溶劑比最小溶劑流量較大的溶劑成本低廉欧美人牲交免费黄色一级片爱情就爱，是優(yōu)良共溶劑。

The discharge coefficient increases rapidly as the increase of the pressure ratio in the small blade entrance angle while change smoothly in the big blade entrance angle.

在較小幾何進氣角時中文字幕网站在线观看，流量系數(shù)隨壓比增大而增大国产一级婬片A片免费无码，在較大幾何進氣角時，流量系數(shù)隨壓比變化不大日韩午夜在线试看网站免费视频。