The soil drains freely and slugs aren't a problem.土壤排水畅通,鼻涕虫就不会造成什么麻烦。Slugs feed on decaying plant and animal material.蛞蝓以腐烂的动植物为食。Slugs play merry hell with emerging shoots.蛞蝓会破坏长出的新芽。...
采用新的管式反应器装置代替釜 式 反应器,将生产7-ADCA和7-ACA的副产物六甲基二硅醚有效地转化成了三甲基氯硅烷.Trimethylchlorosilane was prepared from hexamethyldisiloxane, by - product in producing 7 - ADCA and 7 - ACA.以三甲基硅醚和氯化氢气体为原料, 浓硫酸为催化剂合成了三甲基氯硅烷.Chlorotrimethylsi...