And two models of single channel are also developed, one is formed by ruled-surface impeller, and the other is formed by enveloping surface impeller.

然后在專(zhuān)門(mén)的網(wǎng)格劃分軟件Gambit中對(duì)兩個(gè)整體風(fēng)機(jī)三維流場(chǎng)模型和兩個(gè)單葉輪通道的流場(chǎng)模型進(jìn)行網(wǎng)格劃分及邊界條件設(shè)置。

Survey method using an enveloping measurement surface over a reflecting plane.

在反射平面上利用包封測(cè)量表面的測(cè)量法

To improve the machining efficiency and precision of convex screws,a new method was put forward for inner whirlwind NC enveloping milling of screw curved surface.

為提高凸螺桿的加工效率和加工精度十八岁以下禁止看的黄，將具有切削平穩(wěn)2012在线中文字幕、效率高等特點(diǎn)的傳統(tǒng)旋風(fēng)銑削技術(shù)與具有軌跡控制靈活等特點(diǎn)的數(shù)控技術(shù)相結(jié)合，提出了內(nèi)旋風(fēng)數(shù)控包絡(luò)銑削螺桿螺旋曲面的新方法又硬又爽又粗又长的视频。

To improve the machining efficiency and precision of convex screw s,a new method was put forward for inner whirlwind NC enveloping milling of screw curved surface.

使用軸承測(cè)量?jī)x器完成對(duì)滾子球基面凸度測(cè)量九九自拍偷拍、凸形的判定，確定了測(cè)量方法国产免费A片地址，提高測(cè)量的準(zhǔn)確性及測(cè)量效率涩涩的网站。

Annual cutting norm of forest trees ; GM（1; 1） enveloping grey surface ; control

林木年采伐限額； GM（1午夜黄色网a； 1）包絡(luò)灰平面国产黄页在线观看黄A∨；控制

enveloping surface：包絡(luò)面

envelope delay 群延遲 | enveloping surface 包絡(luò)面 | environment 環(huán)境

enveloping surface：包面

包囊,包絡(luò)線 envelope | 包面 enveloping surface | 環(huán)境工程 environment engineering

enveloping surface：包圍面

包圍的|encircling | 包圍面|enveloping surface | 包錫|tining

enveloping surface of folds：褶皺包絡(luò)面

envelope 包絡(luò)層 | enveloping surface of folds 褶皺包絡(luò)面 | environgeology 環(huán)境地質(zhì)學(xué)

envelope surface ;enveloping surface：包絡(luò)面

包甲電纜|armored cable | 包絡(luò)面|envelope surface ;enveloping surface | 包皮軟管|armoured hose