死点

First, I find the dead center of the bow.

首先，我找到弓的死点。

You hit me dead center when you were telling about getting rid of headers and footers.

你打我死点时，你告诉摆脱页眉和页脚。

So there is not much leeway to place the projector off of dead center horizontally.

因此，没有太多的回旋余地地方死点水平投影机起飞。

But this time there is a stop block valve to prevent valve flap over top dead center and open.

而这时阀内有一个停止块来防止阀瓣超过上死点而打开。

The third is lubricous degree, symmetry and unsymmetry of knee and ankle joint track.

摘 要：在次最大强度下改变骑行变量坐角与坐高，结果表明：恢复阶段的曲柄角速度及膝、踝关节轨迹特征的理论论证与实际结果具有很好的一致性；参与本次实验的自行车运动员坐角不应小于72°、坐高不低于106%th的定位较为合理；初步确认了踏蹬技术的三种运动学诊断指标即提拉阶段的曲柄角速度、不同组合下踏蹬时上、下死点区域的大小，膝、踝关节中心轨迹的重叠程度、光滑程度、对称性与非对称性。

The principal of buffer is described as follows.At impulsing down,the piston moves down and vacates the annular space.The pressure in respiratory cavity decreases to a certain level and the traveling valve opens.At that time,the liquids enter into traveling valve and cavity and the plunger is impulsed upward to carry out the gentle transient at the sudden change.When the upward impulsing begins,the respiratory cavity is subjected to pressure and the traveling valve closes.During the gradual pressure rising,the liquids in respiratory cavity effuse from the upper ventage and the sudden change of force-summing direction of plunger is relieved relying on the resistance of ventage.

其原理大致是：下冲程时，活塞向下运动，让出环形空间的体积，呼吸腔内压力下降，下降到一定水平后，游动阀打开，此时，游动阀和小孔同时进液，使柱塞在从上死点处突然改变方向向上运动时得到缓冲，实现了柔和过渡；当上冲程开始时，呼吸腔受压，游动阀关闭，在压力逐渐上升的过程中，呼吸腔内的液体从上部的小孔流出，并依靠小孔的阻力使柱塞受力突然换向得到缓冲。

The results show that the force coefficient, the equivalent inductance and resistance are constant when the moving magnets oscillate in an operating region.

结果表明：推力系数在一定的动子行程内是基本恒定的，在上死点附近，推力系数有减小趋势；等效电感和电阻在一定的工作电流内是基本恒定的；直线电机等效电阻及电感的波动对活塞位移自传感器的输出几乎无影响，推力系数的波动影响活塞位移自传感器输出幅值的大小；若要提高直线压缩机活塞位移自传感器的输出精度，需要对模拟电路参数进行微调，以确保输出不失真，同时需要在活塞上死点附近对自传感器的输出进行修正。

The mechanism is made up of gear and gear rack can get rid of dead point.

提出了一种齿轮齿条机构产生匀速往复直线运动并能克服死点的方法。

Due to this equation,he gets the variation rules of the walking beam's swing angle and the calculation formula of the distance,velocity and accelaration in the hangingpoint movement.

以CYJ10－3－37HB型抽油机为例，计算了其悬点运动参数，并给出了与简化为简谐运动和曲柄滑块机构运动的对比曲线；分析表明，悬点的上、下死点位置不是常规认为的180°和360°（或0°）曲柄转角，因而按常规计算时悬点位移将出现负值。

Department can not repair welding welding Welding and machining should be cleared of the original; 3, remove the screw, loop cleaning, replacement of defective parts, ground sealing and connecting seat seal surface, re-assembly.

五、关闭件脱落产生泄漏：原因： 1、操作不良，使关闭件卡死或超过上死点，连接处损坏断裂； 2、关闭件连接不牢固，松劲而脱落； 3、选用连接件材质不对，经不起介质的腐蚀和机械的磨损。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！