leakproofness什么意思解释

Now generally used PTEE, EPDM and other material for the valve seat, so bubbles leakproofness good.现一般均使用PTEE 、 EPDM等材料,为阀座, 因此,气泡密封性佳.Especially in automobile industry, the leakproofness of cylinder influences the perfo...

leakproofness的音标：leakproofness的英式发音音标为：[li:kp'ru:fnəs]leakproofness的美式发音音标为：[likp'rufnəs]...

infatuate的音标：infatuate的英式发音音标为：[ɪn'fætjʊeɪt]infatuate的美式发音音标为：[ɪn'fætʃuˌet]...

floatation的音标：floatation的英式发音音标为：[fləʊ'teɪʃn]floatation的美式发音音标为：[floʊ'teɪʃən]...

The quiet was broken by Astley's hacking cough.这片宁静被阿斯特利刺耳的干咳声打破了。...

写字过小症...

JB : There's more about electric fish and human brains at to day's show at earth and sky.jb:今天的 “ 地球与天空”网站上将有更多的有关带电的鱼和人类大脑内容.A stunning display of fireworks lit up the sky.美轮美奂的焰火表演照亮了夜空。The sky was overcast, ...

belonite的音标：belonite的英式发音音标为：['bɪlənaɪt]belonite的美式发音音标为：['bɪlənaɪt]...

n.脑照相术...

“卵裂”的英语可以翻译为：[医] cleavage，merogenesis，segmentation of ovum ...

以α - 溴代十四酸乙酯 、 苯酚、牛磺酸为原料,经William son 醚化, 水解, 催化酰化等反应制备了一种芳氧基作疏水基团支链的牛磺酸盐类表面活性剂, 即N - ( α - 苯氧基 ) 十四酰牛磺酸钠(SPTT ).Sodium N - ( α - phenoxy ) - tetradecanoyltaurate ( SPTT ) was synthesized through Williamson etherificatio...

squeak的音标：squeak的英式发音音标为：[skwi:k]squeak的美式发音音标为：[skwik]...

low的比较级为：lower...

adjoined的音标：...

交错群落...

After this my skin is really illuminous and clean even though there was no lathering.在这以后即使我不使用泡沬之类的,皮肤也特别光滑干净.And yet Carl is standing there lathering his face and not a single detail is altered.可是卡尔却站在那儿往脸上抹肥皂,全然不动声色.O...

subcontract的复数形式为：subcontracts...