“用化学”造句
污染的器材和地面要
用化学药物消毒.
Contaminated instruments and floor surfaces should be chemically disinfected.
轰吓 、 射杀或者
用化学忌避剂可防止鸟类栖息.
Perching can be discouraged by scaring, shooting or chemical repellants.
过去曾设法
用化学变性方法,提高纤维的抗磨损性能.
There have been attempts to modify the fiber chemically to resist abrasion enhancement.