查询词典 pendulum bob

A lens and a paraboloid nozzle were used to focus pulsed CO2 laser and generate impulse.Effects of single pulse energy on impulse coupling coefficient was studied with a high-accuracy compound pendulum and a light figure system.Extension range of pulse energy from 5 J to 70 J was obtained through adjusting working voltage of the laser and energy attenuation of silicon combinations in the experiment.

利用透镜聚焦，抛物面喷管约束，结合复摆和光指针测量系统研究了单脉冲能量对吸气式激光推进冲量耦合系数的影响，实验中通过调节激光器工作电压和硅片衰减实现了脉冲能量5-70 J范围的有效拓展；进一步采用纳秒分幅高速相机拍摄了24 J能量下的流场纹影照片。

The approximate linear model of the three-string pendulum and its computational formula for the moment of inertia are discussed.

对三线摆的线性近似模型和转动惯量计算公式的由来作了简要说明。

This concept was based on the n ive notion that the pendulum would "fall over" as the rocket turned at the peak of the trajectory.

这个概念的基础上， n ive概念，即钟摆会"跌倒"作为火箭拒绝在高峰期的轨迹。

The present device is also called a conical pendulum.

上述装置也称为圆锥摆。

If every heartbeat, every swing of a pendulum, every unfolding of wings of a cormorant are all harmonized together, how could a traveler know that he has passed to a new zone of time?

如果心的每一跳，钟的每一摆，鹈鹕翅膀的每一扇动都那么和谐，旅行者又怎么知道他进入了新的时域？

The top of a spring pendulum is moved to and fro - for example by hand; this motion is assumed as harmonic, which means that it is possible to describe the motion by a cosine function.

一个弹簧振子的顶端被上下来回移动—比方说用手；假设运动为谐振动，也就是意味着有可能用余弦函数来描述此运动。

Experiment data prove existence of the critical pendulum angle and validity of state gain controller.

在构建的实验中，具体的测试数据也有力的证明临界摆角的存在和状态增益法设计控制器的有效性。

The corrosion rate, corrosive wear rate and polarization curves of aluminium brass and cupronickel alloy were determined in 3.5%NaCl and 3.5%NaCl+NH3(NH4+)solutions, the wear tracks of copper alloys were observed by SEM, the specific energy of the surface layer after corrosion was also measured by single pendulum scratching test.

本文通过测定HA177－2，BFe30－1－1在3.5％NaCl和3.5％NaCl＋NH3（NH4+）溶液中的腐蚀速率、腐蚀磨损率和电化学行为以及观测腐蚀磨损后铜合金的微观形貌，研究了腐蚀后样品的表层性能。

Full, flowers are blooming season, the Sanguisorba purple, white dandelion, white and blue Yinlian delphinium flourish, the pendulum of the mountains covered with Na posture.

万紫千红、百花盛开的季节中，紫红的地榆、雪白的蒲公英、雪白的银莲和蓝色的飞燕草争奇斗艳、各摆娜姿铺满了山川。

The company owns the domestic advanced IF diathermic furnace, pre-Tun machine, large pendulum grinding machine forging, quenching and tempering pit furnace, quenched and tempered van furnace, IF James CNC machine tool thermal, magnetic flaw detection machine, alignment machine, Rockwell hardness , the deflection tester manufacturer of specialized equipment such as axle.

公司拥有目前国内先进中频透热炉，预墩机，大型摆碾锻造机，井式调质炉，厢式调质炉，数控中频沾火机床，磁力探伤机，校直机，洛氏硬度计，偏摆检查仪等半轴制造专用设备。

World War II: Battle of Saipan - Americans take Saipan.

1944年的今天，美国在塞班战役中拿下塞班岛。

When the scorner, the rejecter of truth, has become presumptuous; when the routine of work in the various money-making lines is carried on without regard to principle; when the student is eagerly seeking knowledge of everything but his Bible, Christ comes as a thief.{DA 635.3

当讥诮和拒绝真理的人，到了任意妄为时，当追求财利者罔顾按道义经营谋利时，当学人正在兢兢业业地研究各种知识，而单把圣经丢在一边时，基督要像贼一样来临。