Mechanical limit screw is adjustable, safe and reliable;
机械限位螺钉可调，安全可靠；
Poor mechanical property of single macromolecule polymer material limit its clinical application.
单纯的聚合物高分子材料，由于力学性能低，使其应用受到限制。
There is a reasonable economic limit between general overhaul and renewal of mechanical equipment.
机械设备的大修理与更新之间存在合理的经济界限。
There is a reasonable economic limit between general overhaul and renewal of mechanical equipment.
机械设备的大修理与更新之间存在合理的经济界限。
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