催化剂是一种能加速化学反应的物质.A catalyst is a substance which speeds up a chemical reaction.各种陶土管用作转化催化剂的载体.Various ceramic materials have been suggested as supports for reforming catalyst.经过泡水试验,催化剂应不开裂或破碎.To pass the water test the...
I wanted so much to believe he was pure and noble.我非常愿意相信他是纯洁高尚的。Cockburn's arrival coincided with that of Sir Iain and Lady Noble...科伯恩到时正好伊恩爵士和诺布尔夫人也来了。He is never alone that is in the company of noble thoughts.思想...