Their corrosion-resistant properties make them preferable to steel and other metals on an economic basis, for such uses as oil-well drilling equipment, chemical piping, tanks, and similar equipment.

其抗腐性使其在经济上优于钢和其他金属，这类用途有油井钻探设备、化学品管道、贮罐及类似设备。

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The safety lock is drilling twist and picking resistant and is scarcely opened by other key.

安全防盗锁具有防钻、防扭、防锯撬功能，以及互开率极低的优点。

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Conclusion Laparoscopic ovarian drilling is an effective treatment for clomiphene citrate-resistant infertile women with PCOS.

结论腹腔镜单极电凝打孔术是多囊卵巢综合征耐克罗米酚不孕症的有效治疗方法。

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