safety instruction in the operation of liquefied ammonia液: liquid; fluid; juice氨: ammonia; hydrogen nitride操作: operate; manipulate; handle安全: safe; secure; safety; securi ...须知: one should know that; it mus ...下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:液氨操作安全须知，即可在微信中查询翻译
