PS Dont use chemical leechdom, that will destroy undersurface.
注意不能使用化学药品, 那样会伤到下面。
IMPLANTS FOR SURGERY. METAL BONE PLATES. HOLES AND SLOTS CORRESPONDING TO SCREWS WITH CONICAL UNDERSURFACE.
外科植入物。接骨用金属板。圆锥形螺丝用的铝孔和扩孔
The maximum stress of the framework occurred at the node of undersurface of the main hydraulic cylinder mounting boss.
机架最大应力值发生在主油缸安装凸台下表面的节点上。
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