In addition to the dirty of volatile solvents, to airproof.不兴不净剂洋的溶剂难挥发, 给夺目密封.It has good endurance against grinding, aging and good airproof performance.具有良好的耐磨性 、 耐老化性和气密性.Water - cool homogenizing airproof structure ...
Eventually he was happy that the sills and doors were a reasonably good fit.门槛和门扇算是贴合良好，他终于开心了。The micro - gabbro phase is indentical with the typical Bulawayan dolerite sills.微辉长岩相与标准的布拉瓦约粒玄岩床相同.Thirty-one cakes, dampen...
The Observer carries a big front-page picture of rioters in a litter-strewn street.《观察家报》在头版刊登了一张暴乱者聚集在满是垃圾的街头的大幅照片。They saw a big flash and a huge ball of fire reaching hundreds of feet into the sky...他们看见一道强光和一个巨大的火球冲向...
A series of technical foul-ups delayed the launch of the new product.一系列技术问题延误了新产品的上市。I was delayed — something came up at home.我耽搁了些时候——家里出了点事。Nerves became severely frayed when air traffic problems delayed the flight.当...