查询词典 pendulum bob

With gravity pendulum and magnetic damp self-leveling ,easy operation, highly trustiness.

采用自动安平方式，使用方便、可靠。

double pendulum ; gravity free system ; rigid rod ; energy level set ; KAM theory

图 1 双摆模型其中 Pg 中的 g表示系统处于重力场，细杆 OA的质量和长度分别为 m1，l1，细杆 AB的质量和长度分别为 m2 、l2 ，质点 A和 B的质量分别为 m A，m B，系统Pg 绕固定点 O作平面运动

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。

Mathematical model of the higher four level inverted pendulum is particularly educed in this paper.

其次，本文主要研究了倒立摆系统的各种控制方法，包括现代理论控制方法（极点配置法、线性二次型最优控制）、滑模变结构控制方法、两种智能控制方法。

But if you wanted to be highly scientific about it, you could tie a short piece of string to the barometer and swing it like a pendulum, first at ground level and then on the roof of the skyscraper.

但如果你想要高度科学性的话，你可以拴一根短绳到气压计上，让它像一个钟摆一样摇摆，首先在地面摇摆，然后在摩天大楼的屋顶上摇摆。

We stopped by the old fashion ice cream parlor Manhattan Beach Creamery for some refreshment. The "No Shoes, No Shirt, No Problem" sign on the wall epitomizes the beach lifestyle.

我们去商店区的一家老式冰淇淋店坐坐，墙上挂著「没鞋，没上衣，没问题」的牌子完全捕捉了海滩生活的随性及风格。

"If therefore", argues Bellarmine we can offer our prayers and our satisfactions in behalf of those detained in purgatory, because we are members of the great body of Christ, why may not the Vicar of Christ apply to the same souls the superabundant satisfaction of Christ and his saints--of which he is the dispenser?

" "因此，如果"，认为贝拉明（德indulgentiis ，十四）"我们可以提供我们的祈祷和我们满意的代表那些被拘留在炼狱，因为我们是成员的伟大基督的奥体，为什麼可能不是牧师基督适用於同样的灵魂满意的过剩是耶稣和他的圣人-他是在配药？