3 螺杆均经过氮化处理,具有足够的强度耐磨性。
3 The screws and bushes are subjected to nitrogenation treatment to get enough strength and wear-resistance.
3 螺杆均经过氮化处理,具有足够的强度耐磨性。
3 The screws and bushes are subjected to nitrogenation treatment to get enough strength and wear-resistance.
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