市面有许多宣称“长冲程”(long-throw) 的低音单元,但如未标明 Xmax值,只能代表这个单体具有不错的音盆移动能力和悬挂系统,可能设计容忍较高功率的冲击,但并不表示...
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...城社区卫生服务中心 » yangchun city annexd city community health centers 一 、长冲程 低冲次 » A long-stroke low red times 极大改善了槽型托辊组托辊的故障率高 » Greatly improved the grooved roller roller set of high failure rate ..
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长冲程泵 long-stroke pump
长冲程抽油机 long stroke pumping unit ; LCYJ
长冲程蒸汽机 long-stroke steam engine
长冲程柴油机 long stroke engine ; long-stroke diesel engine
长冲程震击器 long strke bumper sub
长冲程瓦斯推杆 Long stroke gas piston rod
超长冲程柴油机 super-long stroke diesel engine
长冲程瓦斯推捍 Long stroke gas piston rod
长冲程策念头 undersquare engine
However, duty radio of the induction motor in it is low. At the same time, there still exist many problems, such as long driving chain, poor flexibility, tremendous cubic and weight in long stroke, and low efficiency.
但由于油梁式抽油机所用感应电机的负荷率低,同时还存在系统的传动链长、柔性差、在长冲程时体积和重量巨大、系统效率低等问题。
参考来源 - 电磁举升系统的基础研究·2,447,543篇论文数据,部分数据来源于NoteExpress
主要产品有长冲程节能型抽油机和盘式刹车。
The main products are Long-stroke energy saving oil pumper and disk type brake.
曲柄链条动滑轮式长冲程抽油机是一种新型抽油机。
The crank-chain driving and long stroke pumping unit described in this papes is a new type of pumping unit.
齿轮式无游梁长冲程抽油机为机械换向台架式滚筒抽油机。
The pumping unit described in this article consists of a frame-mounted mechanical reversing drum.
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