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Additional bending moment on derrick boom 吊杆附加弯矩
Welding Deformation Control for Derrick Boom 吊臂焊接变形的控制
side arm, cantilever, derrick boom, derrick, jib 悬臂。侧臂。起重机。起重机铁臂。
To raise or lower(the boom of a crane or derrick. 升降使起重机的吊臂上升或下降
The ginpole is the simplest form of derrick. 起重吊杆是一种最简单的起重机。
To raise or lower(the boom of a crane or derrick). 升降使起重机的吊臂上升或下降
Stand clear of the swinging boom of the crane. 不要走近转动的超重机吊杆。
He made his pile during the property boom. 在房地产生意兴隆期间他发了大财。
The clock began to boom out twelve. 时钟开始敲十二点。
The long boom of the crane functions like our arms. 起重机的长臂与我们的手臂功能相同。
Profit multiply in the boom year. 兴旺之年利润增长。
The boom of the airplane was damaged. 飞机的尾桁受到损害。
We heard a hollow boom of thunder. 我们听到低沈的隆隆雷声。
The economic boom tapered off in the 1970s. 经济繁荣在七十年代慢慢消失了。
The city is having a building boom. 这个城市正在大兴土木。
The oil market is enjoying a boom. 石油市场欣欣向荣。
derrick boom for dipper 铲斗吊杆
light derrick boom 轻型吊杆
Local firms have been quick off the mark to cash in on the oil boom. 地方商行不失时机地利用油价暴涨大赚其钱。
We put up at the surface an oil derrick. 我们就在那块地面上竖起一个井架。