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

Renovation of the Ear of Crane Truck Pivot Balance Bob

汽车起重机枢轴平衡臂吊耳的修复

Instead, ladies are expected to make a brief bob with the weight on the front foot, and gentlemen should opt for a small nod, and look down briefly.

其实，在皇室婚礼上，女士只须将重心转移到前脚，行一个简短的屈膝礼；男士可选择轻点下头，目光微微下垂。

Bob-weight Valve for Weir-Wall of Precipitating Pool of Surface Sewage Treatment Station

地面污水处理站沉淀池堰墙配重阀

Study in Quality Assurance System of Rotor Bob-Weight Part of Helicopter

直升机旋翼配重构件质量保证体系的研究

The difficulty about designing the turning fixture of gear case cover of air cooled diesel engine lies in the bob weight equilibrium calculating.

风冷柴油机齿轮箱盖车削夹具设计的难点在于夹具的配重平衡计算。

This article adopts the way of transferring weight to simplify the calculation of bob weight equilibrium and to solve the problem of designing fixture theoretically.

本文采用了质量转移的方法，简化了配重平衡的计算，从理论上解决了夹具设计难点问题。

An adolescent girl wearing bobby socks ( common in the 1940s).

穿警靴的青春期女孩（多在二十世纪四十年代）。

Besides, the experimental result shows that it is possible to machine the middle hardness surface gears on an ordinary bobbing machine under the rational cutting conditions.

测试结果表明：在合理的削切条件下，在普通滚齿机上实体滚切中硬齿面齿轮是完全可能的。

Influence of material combination on dynamic parameters of bobbing machine Research on material combination characteristics of vibratory feeder

物料结合对振动机动力学参数的影响振动给料机物料结合的实验研究

The post shrinkage on the bobbin in high speed spinning of polypropylene fiber

聚丙烯高速纺时筒管上的后收缩

The moment the bobbin has been wound up, the bobbin presser is released, and the bobbin winder will stop automatically. The spear looked like a flash of light as it went right up to the cloud.

绕线结束之后，梭芯压片分离，绕线轮自动地停止。这梭镖看起来像一道闪光，直向那片云飞去。

The moment the bobbin has been wound up, the bobbin presser is released, and the bobbin winder will stop automatically.

绕线结束之后，梭芯压片分离，绕线轮自动地停止。

Place bobbin winder 3 in the belt cover, and position it so that it does not contact the machine arm or the belt cover before fixing it with wooden screws.

把绕线装置3放到皮带护罩里，调整到不接触机架和皮带护罩的位置，然后用木螺丝进行固定。

Having carried on detailed argumentation to technological transformation of the bobbin winder from eight respects.

从8个方面对络筒机技术改造进行了论述。

The location principle of wider head bobbin holder of spinning machine is analyzed, and then the adjustment of the bobbin holder are introduced in detail.

分析了纺丝筒子座组合件的定位原理，详细介绍了筒子座组合件的调整方法。

Improper arms of bobbin holder.

筒管支架不合适。

Because friction coefficient between bobbin holder and the base of dead spindle has been changed, spinning tension was controlled well.

由于筒管座对呆锭盘的摩擦系数发生变化，从而有利于控制纺纱张力。

The adjustment and analysis of winder head bobbin holder of spinning machine

纺丝机筒子座组合件的调整与分析

Comparison and Analysing about Bobbin Holder for High Speed Spinning Machine

高速纺丝机筒管夹紧装置的分析比较

Bobbin lace is a more widespread craft that originated in Flanders.

线轴编织花边，起源于法兰德斯，是被广泛采用的一种手工艺。