查询词典 conical pendulum

There is, for instance, a kind of steel called invar (from"invariable") which does not change its dimensions as temperature changes; it is valuable for making pendulums, since, if the length of a pendulum changes, its time of vibration changes.

不过也有一两个例外，例如有一种钢叫做殷钢(从&invariable&一词而来)，在温度变化时它的大小尺寸不变；这种钢对于制造钟摆很有价值，因为如果摆长改变，摆动的周期就改变。

There are one or two exceptions. There is, for instance, a kind of steel called invar (from"invariable") which does not change its dimensions as temperature changes; it is valuable for making pendulums , since, if the length of a pendulum changes, its time of vibration changes.

不过也有一两个例外，例如有一种钢叫做殷钢(从&invariable&一词而来)，在温度变化时它的大小尺寸不变；这种钢对于制造钟摆很有价值，因为如果摆长改变，摆动的周期就改变。

If I had to do it again, I would have had left the haul bag on the ledge with Wes. Then I would pendulum across with both the main line and the haul bag line. I'd pull both tight and tie them off at the belay stance. Then Wes would put the haul bag on his back and Tyrolean down to me -- using one of his jumars reversed as a brake.

假如我得再做一次，我会把拖包及Wes放在那堙A然后我摆荡横渡主线及拖拉线，再将他们从确保站立处拉上来，然后Wes把拖包放在背上再Tyrolean下到我这堙A用他其中一个犹玛制动。

In this paper on the basis of introducing the leveling principle of a pendulum leveling instrument with a micro-bearing compensating device placed before the focusing lens ,the errors of automatic leveling of this type are analysed in theory;the methods for checking and adjusting it are discussed systematically,and at the same time some suggestions in use are also given

本文在论述轴承摆补偿器位于调焦镜之前安平原理的基础上，对该类型自动安平水准仪的误差作了系统的理论分析；对检验校正的方法作了较详细的探讨，并提出作业中应采用的方法。

The objective conditions make people happy and sad. The happy and sad mood swing like a pendulum.

人因客观条件的牵引而兴之乐与哀，永远就是这样如钟摆般来回地交换移动。

Till 1675, the pendulum type were used in the neck, Charles II of England introduced long waistcoats and men used the pockets of these waistcoats to put the watches.

直到1675年，钟摆式中所使用的脖子，英国查尔斯二世介绍了长背心和男子的口袋使用这些背心把手表。

At the ends of its swing,the pendulum bob is momentarily motionless and therefore has no kinetic energy.

在来回摆动的末端，摆锤是即时静止的，因此它没有动能。

The mass of the pendulum bob does not change from one location to another on the earth's surface.

摆锤的质量在地面各处都一样。

When pulled to one side of its equilibrium position and released, the pendulum bob vibrates about this position.

把此质点作为摆锤拉到平衡位置的一侧，然后释放，摆锤就在平衡位置附近摆动。

In order to study the theology of fire-fighting foam,which is similar to some specialfluid,a specially designed pendulum system with rectangular bob is used to measure yieldstress.

研究泡沫这种特殊流体的流变学性能时，用专门设计的钟摆式屈服应力测定装置测量泡沫的屈服应力，摆片为矩形。

He paid $5,000 for this cupcake.

他我这个纸杯蛋糕花了5000美元。

I mean, if you want to, that is

我的意思是，如果你们想吃的话。