变幅

Abstrac t: Lead-acid battery recovery techniques including activation with gel nano-carbon, pulse charge with variable current scope and scanning-frequency sympathetic vibration charge were reviewed. The battery may be disabled by water-lost, sulfated or battery case mechanically damaged by hit, beat and fall down. Recovery mechanism, methods and application range were discussed.

本文综合性地论述了用纳米碳溶胶活化剂、变幅脉冲充电技术、扫描共振频率充电技术，对因失水、严重的硫酸盐化而造成电性能失效的铅酸蓄电池及因碰撞、跌落、摔打导致铅酸蓄电池外壳破裂而失效的电池进行修复的机理、方法、适用范围以及试验结果。

From the tower crane or organizations to adopt domestic brand-name three-speed motor, a third gear the pace of work; first-class quality, long-term frequent trouble-free; Change adopted by the electromagnetic brake brakes with the overall design of forming programmes, good mechanical properties, making car operation Flexible comfortable, safe and reliable, significantly prolong its life; Rotary organizations to adopt the form of hydraulic coupler, turning soft, well-targeted, efficient.

塔机起升机构采用国内名牌三速电机，具有三档工作速度；品质一流，能长期频繁无故障工作；变幅机构采用带电磁制动刹车装置整体设计成型方案，机械性能好，使得小车运行灵活自如，安全可靠，明显延长其使用寿命；回转机构采用液力偶合形式，转动柔和、定位准确、工作效率高。

The quality and quantity of water for ecological use have a larger variable range in arid zone.

生态用水的水质与水量具有较大的变幅范围，用水的方式比较灵活，水分的供给状况影响生物的生产力。

The quality and quantity of water, for ecological use have a large variable range in arid zone.

Tarim River ； water resource ；干旱区生态用水的水质与水量具有较大的变幅范围，用水的方式比较灵活，水分的供给状况影响生物的生产力。

For high altitude satellite, dissipative effect is not important at all, Perturbed by the attraction of the third body, the eccentricity will also have long periodic variation with large amplitude because of the apsidal resonance.

对于高轨卫星，大气的耗散效应已不重要，但在第三体引力摄动下，近点共振效应会使卫星轨道偏心率e出现大变幅的长周期变化，导致卫星落在主星上结束其轨道寿命。

The four-bar combination jib is one of the most commonly used forms of the derricking mechanism for portal cranes.

四连杆组合臂架是门座起重机最常用的变幅机构形式之一。

The hook and rope of a crane can be regarded as a pendulum that is drived by slewing motion and derricking motion.

起重机这类起重运输设备的吊钩缆绳可以看作受回转、变幅运动驱动的单摆，但起吊运动也在水平方向上产生科里奥利力，影响载荷摆动的规律。

When sprag-type clutches are used in hoist and derricking systems, they shall incorporate a positive mechanical lock against failure or be designed to transmit twice the maximum torque imposed by the maximum line pull.

提升和变幅系统使用斜撑离合器时，离合器必须带有一个可靠的机械锁，以防出现故障。离合器的设计应当可以传递最大直线拉力产生的最大转矩的两倍的转矩。

A new load moment limiter is presented which incorporates the 78E54 single-chip processor and the MGL-240128 LCD with the built-in T6963C coral chip,describing in detail the limiter's operation and how to process the signal from the sensor installed on derricking rope of crawler crane .

介绍了一种利用单片机 78E5 4以及内藏T6 96 3C的液晶显示器MGL - 2 4 0 12 8设计的力矩保护器的工作原理；并对该力矩保护器在履带式起重机上工作时，在变幅绳上取力时信号如何处理做了分

The hoisting, derricking and slewing mechanism, the extension and contracting of booms, the setting down and back of outriggers, all are driven hydraulically.

该机的起升、变幅、回转、吊臂伸缩及支腿收放等机构，全部采用液压驱动。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。