1) safety measure
The safety measures for overhaul of 200000 m3 blast furnace gas holder sys-tem of No.
2) technical safety measure
Accidents happened in our country were analyzed emphatically during the transportation of pre-emulsified solution (or matrix) by a screw pump, and some technical safety measures which had been proved to be effective were also put forward.
3) Security methods
4) Maritime security measures
5) physical security (referred to protection of air base)
6) accident prevention
1.见"安厝"。 2.安宁。 3.安置。