The work was done cheaply and flimsily.这件成品做工差,而且质料单薄.This car is so flimsily constructed!这部车的构造如此不结实!And delta is zoology environment is taken flimsily, bearing in resource development enormous environmental pressure.而三...
氟化物的危害一般局限在制造厂的附近.Fluoride damage is generally restricted to areas near manufacturing plants.在茜素染料法中,氟化物的消色作用较慢.The bleaching action of fluorides is slow in the alizarin dye procedure.氟化物危害的特点是叶片顶尖灼燃现象.Fluoride injury of...