The concept for Tower 2 of the World Trade Center is equally driven by this balance between memory and rebirth.
新世贸大厦2号楼的设计概念仍旧是在过去的记忆和现在的重生中取平衡点。
The tower crane is mainly composed of vertical tower, horizontal tower, tower tower and balance arm, as shown in Figure 3.67.
塔式起重机主要由竖直塔身、水平塔臂、塔顶和平衡臂等主要部件组成，如图3.67所示。
Balance weight block installation position is not accurate, will cause the boom and the balance arm balance torque deviation is too large, easily lead to instability of the tower crane.
平衡重块安装位置不准确，会造成起重臂与平衡臂平衡力矩偏差过大，轻易造成塔吊失稳。
The "weight-type" balanced structure of JPCYJ can achieve accurate weight balance, the tower structure can achieve a long-stroke pumping, This pumping unit provide a good conditions for energy saving.
JPCYJ结构属于“砝码式”平衡，能实现精确的配重平衡，塔式结构能实现抽油机长冲程，这为抽油机节能提供了良好的条件。
There was a bar hanging from the top of the tower, and I seized it for balance.
高塔上垂下一根竿，我抓住它以求平衡。
By the terms of the calculated result we found a rule that all this type tower crane don't need to estimate the fatigue life of balance beam.
根据疲劳寿命结果得出该类型式起重机起重臂的设计不用考虑疲劳问题。
By the terms of the calculated result we found a rule that all this type tower crane don't need to estimate the fatigue life of balance beam.
根据疲劳寿命结果得出该类型式起重机起重臂的设计不用考虑疲劳问题。
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