爱词霸英语   汉语   手机版   软件版下载 | English
每日一句:正在加载...
1.With certain shapes of nozzle or canula, elongated caps are made to cover both canula and threaded portion, and seal the canula at its top.
根据管口和导管的不同形状，可以制造细长的管盖以覆盖导管和螺纹部分，并在顶部封住导管。收藏指正
尝试查询
汉英释义