Mechanical energy is conserved, because gravity is a conservative force.
机械能是守恒的，因为重力是守恒力。
And mechanical energy is only conserved if the force is a conservative force.
机械能只有在，力是恒定时才恒定。
This system can be easily applied to all machines with mechanical presetting of measuring force.
这个系统可以很容易地适用于所有的带有测量力的机械预先装置机器。
Engine: a machine that converts energy into mechanical force or motion.
引擎，发动机：把能量转化为机械力和运动的一种机器。
The thermal stress cracking is initiated without the use of mechanical force.
热应力裂纹的启动没有利用机械力。
For laying indoors, in tunnel or pipe, unable to bear external mechanical force.
敷设在室内，隧道及管道中，不能承受机械外力。
The company has world-class mechanical equipment and strong technical force management staff.
公司拥有世界一流的机械设备及技术力量雄厚的管理人员。
Double cylinder drive, mechanical synchronization, large lifting force.
采用双缸驱动，机械同步，举升力大；
The mechanical force analysis was also set up for main components of the body.
建立了该机构中主要零部件的受力分析模型；
The mechanical force analysis was also set up for main components of the body.
建立了该机构中主要零部件的受力分析模型；
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