Ball screw using ball movement, so the starting torque is very small, does not appear sliding movement crawling phenomenon, so can ensure accurate micro feed.
滚珠丝杠利用的是滚珠运动，因此启动力矩极小，不会出现滑动运动那样的爬行现象，故而能保证实现精确的微进给。
There is no internal scale product of dry screw pump owing to the late research starting, so like products are all depend on importing and the price is very expensive.
由于国内螺杆干泵的研究起步较晚，目前还没有规模化的产品，同类产品全部依靠进口，价格十分昂贵。
Starting with the current situations of the screw pump lifting, this paper analyzes the adaptability of the screw pump lifting in alkali-surfactant-polymer flooding and poi...
从三元复合驱螺杆泵举升技术现状出发，分析了螺杆泵举升在三元复合驱应用的适应性，给出了螺杆泵举升技术的应用效果。
Before starting must first loosen the screw fixed beams.
开机前一定要先松开固定横梁的螺丝！
Screw pump should be in suction stop valve fully open under the condition of starting, in case of overload or empty.
螺杆泵应在吸排停止阀全开的情况下起动，以防过载或吸空。
We have All-Under-One-Roof production, starting from incoming wire, screw forming, plating, coating, packing and shipping, which provide better quality control at each production stage.
我们采取一条龙的制造流线，由进料、成型、电镀、涂装、包装、出口都在本厂处理，有效控管每一制程的品质，也提供顾客最方便的采买服务。
We have All-Under-One-Roof production, starting from incoming wire, screw forming, plating, coating, packing and shipping, which provide better quality control at each production stage.
我们采取一条龙的制造流线，由进料、成型、电镀、涂装、包装、出口都在本厂处理，有效控管每一制程的品质，也提供顾客最方便的采买服务。
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