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- It can obtain dropping characteristic when AC, welding current waveshape is rapid zero-crossing square wave, it is propitious to welding current and arc stability. 交流時(shí)可獲得陡降外特性,焊接電流波型為迅速過(guò)零的方波,有利于焊接電流和電弧穩定。
- Experimental studies were carried out to investigate the air-side heat transfer and pressure drop characteristics of a novel louvered fins and flat tube beat exchanger. 摘要對9種不同結構參數的新型開(kāi)窗翅片進(jìn)行傳熱和流動(dòng)阻力性能試驗。
- Using compressed air as working medium,heat transfer and pressure drop characteristics of compressed air in mixed Chevron bellow s plate heat exchanger were tested. 以現場(chǎng)的壓縮空氣為實(shí)驗工質(zhì),對壓縮空氣在人字形波紋板式換熱器的傳熱與流阻性能進(jìn)行實(shí)驗研究。
- An experimental study of frictional pressure drop characteristics of R410A-oil mixture flow boiling inside straight and C-shape horizontal enhanced tubes was performed. 實(shí)驗研究了環(huán)保制冷工質(zhì)R410A-潤滑油混合物在直強化管和C形強化管內流動(dòng)沸騰的摩擦壓降特性。
- The bulk characteristics of the PHE w ere evaluated from heat transfer and pressure drop characteristics,heat transfer efficiency,compactness and economic characters etc. 此外還從傳熱與流阻性能、傳熱效率、緊湊性和經(jīng)濟性等方面對板式換熱器的整體性能進(jìn)行了評價(jià)。
- Comparison of end wall heat transfer and pressure drop characteristics was made between two kinds of rectangular clapboards and two kinds of waved clapboard in the turbine bl. 主要討論了在通道其它結構均相同的條件下分別采用4種不同結構的隔板(2種孔徑的矩形隔板與2種孔徑的波形隔板),研究隔板中孔徑大小對通道換熱和流阻的影響。
- They're completely anti the new proposals. 他們完全反對新的提議。
- The old man is dropping away in the sofa. 這位老人在沙發(fā)上打起瞌睡來(lái)。
- The hydrodynamic experiments with countercurrent flow of gas and liquid simulating the flow conditions in the lower zone of the blast furnace were carried out in a packed bed to clarify the gas pressure drop characteristics in that zone. 摘要為了闡明高爐下部氣相壓降的特性,在填料床內模擬高爐下部流動(dòng)條件進(jìn)行了氣液兩相逆流的流體力學(xué)實(shí)驗。
- Sympathy is the feeling characteristic of mankind. 同情心是人類(lèi)特有的感情。
- The airplane was attacked by dropping bombs. 這架飛機遭到炸彈的襲擊。
- I tripped over, dropping the tray I was carrying. 我絆了一下,手中的托盤(pán)掉在地上了。
- The experimental study and numerical simulation on heat transfer and pressure drop characteristics were performed at the shell-side of a coaxial-pipe heat exchanger with helical baffles. 以水-潤滑油換熱為對象,對螺旋隔板套管換熱器的殼程傳熱與壓降性能進(jìn)行了實(shí)驗研究與數值模擬。
- He spoke with characteristic enthusiasm. 他以特有的熱情說(shuō)話(huà)。
- The airside heat transfer and pressure drop characteristics of slit fin-and-tube heat exchangers with hydrophilic coating were studied experimentally under dehumidifying conditions. 對帶親水層條縫型翅片管換熱器在析濕工況下的空氣側特性進(jìn)行了實(shí)驗研究。
- Her predominant characteristic is honesty. 她最為突出的特點(diǎn)是誠實(shí)。
- Men were dropping like flies in the intense heat. 人們抵受不住酷熱而紛紛倒下。
- Characteristic of or befitting a warrior. 勇敢的,好戰的具有戰士、勇士特征的或適宜于勇士的
- He said he would drop her like a hot potato. 他說(shuō)他會(huì )把她像燙手的東西一樣迫不及待地扔掉。
- The rain is leaking in large drop through the roof. 雨正大滴大滴地從屋頂漏下來(lái)。