步兵
发表于 2025-3-28 17:54:06
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Mere仅仅
发表于 2025-3-28 21:57:31
Transmission Brakes, is cut off, for positioning, quick stopping in emergency (safety brakes), automatic speed control, providing a tension (. for reeling) or simply for bringing the equipment to rest in a reasonable time. Just as the motor is used to accelerate the drive, so the brake is needed to decelerate, hold, or
Infantry
发表于 2025-3-29 02:08:54
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暗讽
发表于 2025-3-29 04:28:28
Macmillan Engineering Craft Serieshttp://image.papertrans.cn/m/image/628318.jpg
易于出错
发表于 2025-3-29 10:54:23
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Psa617
发表于 2025-3-29 13:27:33
Variable Speed Drives, designer is able to select from many and varied methods of obtaining a variable speed output. The desired result may be achieved by three basic methods: (1) Mechanically. (2) Hydraulically. (3) Electrically. However, many forms of these basic methods are available, resulting in considerable difficulty in narrowing down the choice.
史前
发表于 2025-3-29 17:05:57
Hydrostatic Drives,hich the engineering designer may embody in his own equipment. This chapter deals with the general principles involved in designing such a hydrostatic system. The graphical symbols used are to international standards..
大暴雨
发表于 2025-3-29 22:10:54
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可转变
发表于 2025-3-30 02:02:31
Flexible Shaft Drives,instrument drives. However, there are a large number of proven applications other than the more familiar ones, and new applications are being discovered continually in conjunction with new techniques for varying the characteristics of flexible shafts.
Optometrist
发表于 2025-3-30 04:53:41
Instrument and Control Drives, reliably. Many instrument units are merely miniaturised versions of their power transmission equivalents, but with the specification accent on accuracy and low friction and not on their power transmission capabilities.