The net force is ultimately the sum of the external force and all the internal forces.
合力是最终的总和，外力与所有内力总和。
I think this tool is not so easy to break without intense impact by external force.
我想，如果不受到外力的强烈撞击，那么这个工具是没有那么容易损坏的。
We study the decay rate of solutions of beam equations with damping and external force.
研究含外力和阻尼项一类梁的横振动方程解的率减率。
And the settlement is relative, conditional, to be subject to external force to exercise.
而沉降是相对的，有条件的，要受到外力才能运动。
And the system response for the coupled case and the function of the external force are offered.
并给出刚柔耦合情形下且受外力作用时的系统响应。
Momentum is conserved, because there was no net external force, so now kinetic energy is also conserved.
动量是守恒的，因为它不受外力，因此动能也是守恒的。
And if there is no net external force on the system as a whole during the collisions, then momentum is conserved.
若没有外力，作用于系统整体，在碰撞过程中，动量就是守恒的。
The damped blades is a nonlinear dynamic system, so its natural frequency can be influenced by external force.
与线性动力系统不同，阻尼叶片的频率不再是它的固有特性，其频率受外界激振力的影响。
Any system capable of a free vibration without external force is a counter example, e. g. a wire in the piano.
任何一个无外力而能自由振动的系统就是一个反例，譬如钢琴中的一条钢丝。
Talent as sponge in the water, there is no external force of extrusion, it is an absolute flow not to come out.
人的才华就如海绵的水，没有外力的挤压，它是绝对流不出来的。
The working conditions of power turbine of gas turbine during tested with external force driving were presented.
对燃气轮机动力涡轮用外力拖动作试验时的有关工作状况作了初步分析。
Secure interface: Strengthened interface to prevent deformation and cracking under the effact of external force.
紧固接口：加固接口装置，防止受外力原因变形和裂开。
that if the external force, 0 the total external force on the whole system is zero, it means that the momentum cannot change.
,如果外力，作用于系统的外力为，意味着动量没改变。
Its inverse force analysis is to find all equilibrium configurations when an external force ACTS on its moving platform.
其力逆解即给定作用于上平台上某点的外力，求系统处于静力平衡时的所有构形。
Due to the self-accommodation effect which the external force ACTS on the arch, the stress in the springe gets lesser too.
拱脚处也由于拱体对外力的自我调节作用而变得比纯竖向构件小的多。
Kinetic energy can be destroyed, but momentum cannot be destroyed in the absence of a net external force on the system as a whole.
动能可以被毁，但是动量不能，在整个系统外力，不存在情况下。
The helical vane is analyzed. The helical vanes are welded together and added the external force to be cold-drawing formation.
对螺旋叶片进行了分析，把螺旋叶片焊接组合起来，旋加外力，冷拉成型。
The drift move of field has generality: Any eddy field may have a drift move of field in the nature when the external force acts.
场的漂移运动可以作一般性推广：自然界中在外力作用下任意涡旋场可以产生场的漂移运动。
When stock prices fluctuate under the influence of volume, we can perceive this as movements of a spring caused by external force.
弹簧在外力作用下的运动可类比地看成股价在成交量推动下的波动。
Effecitively enhance the intensity 4 times than glass and greatly reduce the possibility of glass bursting from external force hit.
有效提高玻璃4倍以上强度，大幅降低玻璃受外力撞击时爆裂的可能性。
In this paper we prove some theorems on harmonic solutions of some second-order nonlinear equations under a periodic external force.
本文给出了某些二阶非线性微分方程在周期外力作用下存在调和解的若干定理。
Ships subject to the code should survive the normal effects of flooding following assumed hull damage caused by some external force.
受本规则约束的船舶应能承受在外力作用下船体遭受假定破碎后正常进水的影响。
Total potential energy is composed of elastic and dissipated potential energies in shear band as well as work done by external force.
系统的总势能由剪切带的弹性及耗散势能和带外弹性岩石对剪切带所作的外力功构成。
The sum of spring forces is corresponded with external force, and the sum of displacement of each node equal to the total deformation.
系统中各个质点的相对位移的叠加对外等效为物体表面变形，与之相连的弹簧弹性力的合力等于物体表面的接触力。
In compare with the external force feed type, the uniformity of dropping may be increased by 10-30% when sowing wheat, sorghum, millet and corn.
它和外槽轮式排种器相比，在播种小麦、高粱、谷子和玉米时，其排种均匀性提高10 ~ 30%左右。
The fundamental reason, nothing more than the earth's surface is subject to two forces, one is the external force, the two is the internal force.
其根本原因，不外乎是地球的表面受了两种力，一是外力，二是内力。
When fortification, not only need be able to prevent the seepage, but also requests durably, when external force harm cannot present the leakage.
设防时不但要能防止渗透，还要求耐久，当外力损害时也不应当出现渗漏。
Methods: An external force actuator was developed, the imaging pulse sequence of MRE was designed, and tissue simulating phantoms were constructed.
方法：研制外部激发装置，设计成像脉冲序列，制作模拟人体软组织的体模。
Methods: An external force actuator was developed, the imaging pulse sequence of MRE was designed, and tissue simulating phantoms were constructed.
方法：研制外部激发装置，设计成像脉冲序列，制作模拟人体软组织的体模。
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