These methods, unfortunately, are not very sensitive and may not be superior to the soap - bubble test.不过, 这些方法不是很灵敏的,并且不可能比肥皂泡试验法好.Natural fiber is said to be superior to synthetic fiber.据说天然纤维比合成纤维好.Local people consid...
采用发泡剂AK制作了硅橡胶海绵.Blowing agent AK was used to preparing silicone rubber sponge.加入发泡剂后应与基础渣搅拌混匀.Please mill completely with basic slag after add this agent.将粉煤灰加入到熔融铝液中,经适当搅拌后,再加入发泡剂,经冷却,即可得到颗粒增强泡沫铝.Fly ash particles act a...
30多年来他一直是这个俱乐部的顶梁柱.He was a pillar of the club for over thirty years.他们是这个厂的顶梁柱.They are the backbone of the factory.老爷们儿一般都是家里的顶梁柱.Generally speaking , husbands are the pillar of a family....
Ah yes, but think of all the family life they're missing.是这样，不过别忘了他们错过了多少天伦之乐。He was sitting there saying, "Yes, the figures make sense."他坐在那儿说：“是的，这些数字可以理解。”Mr Wade answers both questions with a qualified yes.韦德先生对...