本帖最后由 Carseller 于 2011-8-4 15:36 编辑 / b* c* T3 }4 B+ _ i& h D2 z' L- _0 p& X4 n& ^) M3 d8 T( ?9 m2 s
深表痛心# T f8 O4 @0 S
在运行管道上操作要:double blinding or double block + bleeding and lock out & tag out . 施工作业前,要做现场复核。
# J5 b( `/ Y: J, ] y/ U We should respect all people who can work hard for their wives and children in Canada. s8 S9 E4 O/ h- E, e0 m# s5 i
Certainly we also respect all people who can work hard for their children in China.