被交流干扰的管道与牺牲阳极直接相连,这种排流方法叫()。
A. 直接排流
B. 隔直排流
C. 负电位排流
D. 钳位式排流
查看答案
拉伤是钝性暴力直接作用于人体某部而引起的急性闭合性损伤。
A. 正确
B. 错误
A distance piece, with ground faces, known as a compression plate, may be interposed between the rod and the beating housing, its thickness being chosen to ensure the correct ().
A. compression pressure
B. compression test
C. compression ratio
D. compression clearance
为加强消防安全工作,增强全社会的消防安全意识,公安部提出了构筑社会消防安全“防火墙”工程,提高社会单位消防“四个能力”。“四个能力”是哪些内容?