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1·This pushing and pulling force is called lift.

这种推和拉的力量就叫做升力。

2·Demand is the original pulling force of economic growth.

需求是经济增长的原始拉动力。

3·Tension is a mutual pulling force. It can be divided into internal tension and external tension.

张力是一种相互牵引力，它可以分为内部张力和外部张力。

4·The gap is influenced by water pressure gravity of equipment; magnetic pulling force and heat expand.

间隙的大小受水压，设备自重，磁拉力和热膨胀等影响，其中以热膨胀的影响因素最大。

5·Extension springs are springs which absorb and store energy by offering resistance to a pulling force.

拉伸弹簧通过抵抗张力吸收和存储能量。

6·The maximum working pulling force of bolt-set connection under a bending moment is measured and analyzed.

对受翻转力矩螺栓组联接的最大工作拉力进行测试与分析，提出符合实际受力状态的精确计算方法。

7·When tensile force value dispersed degree of steel wire is low, broken pulling force of wire rope is high.

当钢丝拉力值的离散度较小时，钢丝绳的整绳破断拉力值大。

8·Design and calculation method of the key parameter such as the diameter of roller and pulling force are given.

介绍两辊式和三辊式机械弯曲除锈原理，给出关键参数如辊子直径、牵引力等的设计计算方法。

9·The handy intelligent pulling force instrument was designed for measuring pulling forces of agricultural machinery.

便携式智能拉力仪是为测量农业机械牵引力而设计的。

10·Based on above results, an estimating method of pulling force of anchor cable decreased with time is finally proposed.

在此基础上，提出了锚索张拉吨位随时间而损失的估算方法。

拉力

1·And narrating the size depends on the degree of the pulling force, a reasonable size should provide a sufficient work room for the anchor system.

得出了锚碇尺寸主要取决于主缆拉力的大小，合理的锚碇结构要能给预应力锚固系统提供足够的工作空间。

2·For laying in doors, in tunnels, in cable trench or direct in ground, able to bear external mechanical forces, but unable to bear large pulling force.

室内、隧道、电缆沟内或埋地等能承受机械外力的场所，但不能承受大的拉力。

3·To state the restoring force of a simple pendulum during oscillation is the resultant force of the gravity of the ball and the pulling force of the thread is wrong .

常出现一些模糊认识，即认为单摆在振动中所受的回复力就是摆球所受重力与绳子拉力的合力，显然，这是错误的。

4·On the basis of two fundamental assumptions: the plane strain and the film internal force, this paper states at first the DAMS bag pulling force principle of different working circumstance.

从橡胶坝的薄膜内力和平面问题两个基本假设出发，阐明坝体在不同承载工况下的坝袋拉力理论。

5·Gyroplane is different from the helicopter. Its rotors are not linked to the engine and cannot provide pulling force and controlling moment.

旋翼机与直升机不同，它的旋翼和发动机没有联系，不能提供拉力和操纵力矩。

牵引力

1·Tension is a mutual pulling force. It can be divided into internal tension and external tension.

张力是一种相互牵引力，它可以分为内部张力和外部张力。

2·Design and calculation method of the key parameter such as the diameter of roller and pulling force are given.

介绍两辊式和三辊式机械弯曲除锈原理，给出关键参数如辊子直径、牵引力等的设计计算方法。