Polyurethane elastomers based on glycols ( PEA, PPG PTMG ) , diisocyanate ( TDI ) and chain extender ( E - 300 ) were prepared.以多元醇 ( PEA, PPG,PTMG ),PDI, E300为原料,制备了 PU 弹性体.A new process of Hydration of propylene oxide ...
将一锅盐水放上去煮。Put a pan of salted water on to boil.同时，把碗置于微沸的水上，将白巧克力放入碗中使其熔化。Meanwhile, melt the white chocolate in a bowl suspended over simmering water.把水果和坚果放进罐子里，用白兰地酒浸泡。Pack the fruits and nuts into the jars and cover ...
他动员全世界的舆论反对氢弹试验。He mobilized public opinion all over the world against hydrogen-bomb tests.这种铀和氢的结合,叫做 “ 氢弹 ”.This combination of uranium and hydrogen is called a " hydrogen bomb ".使用氢弹是否违背人道?Would the use of H - bombs b...
Water is not only colourless, but odourless as well.水不仅没有颜色，也没有气味。The gases are odourless.这些气体没有气味。...a completely odourless, colourless, transparent liquid...完全无味、无色、透明的液体Hydrogen is a corlourless, odourless gas.氢气是一种无色...
Until last year, the regime kept a tight grip on the country...直到去年，那个国家还处于该政权的严密控制之下。I kept the gun aimed squarely at his eyes.我一直将枪径直瞄准他的双眼。He'd obviously kept himself fit despite his years of confinement.显然，尽管监禁多...
The Lektron Kool is not ice box.冷创冰箱不是一般的冰柜.Now you can own the Lektron Kool for $ 40 or $ 50 less than the regular price.现在您可以以低于正常价格40至50美元的单价,拥有冷创冰箱.We drank a lot of kool - aid during the 22 streak, but now it's...