井架用来吊升分节油管,把油管放入有钻头打出的孔中。
It is used to lift the sections of pipe, which are lowered into the hole made by the drill.
所有混凝土构件只能在图纸或由专家指定的地点吊升及支承。
Allconcrete members shall be lifted and supported only at points indicated on the drawings or otherwise approved by the expert.
绞车,起货机一种装有卷筒的固定的电动机驱动或手动的吊升机械,卷筒周围缠绕着与提升的重物相连的绳索。
A stationary motor-driven or hand-powered hoisting machine having a drum around which is wound a rope or chain attached to the load being lifted.
对于搜寻和援救任务,直升飞机能配备一个250公斤-能力起升机,使用绞盘和吊具安装在右舷舱门上方外部,还有一个搜索灯。
For search and rescue missions, the helicopter can be fitted with a 250kg-capacity hoist with winch and scoop fitted externally above the starboard side cabin door and a search light.
别的,轮胎吊处于等待状况时,柴油机还需损耗部分额外的油料,而轨迹吊在起升组织降低时还有部分能量反馈到电网。
While the tyred lift is on standby, the diesel electrical machine is still consuming extra diesel, but the track lift could repay some power to the grid while its lifting mechanisms are lowing.
在开箱·搬运·安装时,请使用吊滑轮,起重机,叉式升运机等辅助设备。
When opening, carrying or installing it, please use block and tackle, chain block, fork lift truck or other assistant devices.
结论吊重起升加速度对起重机动载荷的影响较大,特别对主臂内的动弯矩的激励更加明显。
The influence of load hoisting acceleration on dynamic forces is obvious, especially on dynamic bending moment of the main boom.
随着起重机大车、小车及起升机构的加速和减速,由钢丝绳连接的吊重的运动状态表现为一个复杂的空间运动。
The spreader is linked to the crane through the rope, and its motion state is changed complicated in three-dimension with the accelerating and decelerating of trolley, hoist and gantry.
随着起重机大车、小车及起升机构的加速和减速,由钢丝绳连接的吊重的运动状态表现为一个复杂的空间运动。
The spreader is linked to the crane through the rope, and its motion state is changed complicated in three-dimension with the accelerating and decelerating of trolley, hoist and gantry.
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