check, buy the bill, pay the bill
【机械工程】止回阀（停止阀，旁通阀）
check valve (stop valve, by-pass valve)
暂无补充释义。
相关词条
check out
final check
cross-check
alar ligaments【解剖】;check ligament【解剖】;ligamenta alaria【解剖】
by-pass check valve (free-wheeled checkvalve)
by-pass check valve (free-wheeled check valve)
leak test【试验】;leakage check test【电子】