英语词典
This article briefly introduces the codes to be complied with in the design of boom derrick system for cargo hose. A method for the structural design and strength calculation of a 10t single boom derrick system of cargo hose for a 44, 000t products carrier is presented.
本文简要介绍了货油软管吊系统设计中应遵守的规范,并就44000t成品油船的10t货油软管吊系统提出了结构设计和强度计算的方法。
互联网摘选
Aim the derrick boom to the upper adjusting nut.
拧动调节螺母,使螺杆进入插片.
网络文摘精选
To raise or lower ( the boom of a crane or derrick ).
起重机臂转了过来.
Comprehensive optimum frame design of boom and derrick in cranes
起重机臂架与人字架的综合优化设计
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