The decelerator of precision fabrication, with the worm gear pair made of high-quality special alloy, guarantees the machine wear-resisting and ultra quiet.
精密加工制造的减速器，蜗轮副采用高品质的特殊合金，保证整机耐磨损，超静音。
Product quality has obtained the request of Daqing oil field salt-resisting polymer, and output has attained planning value.
产品质量指标达到了大庆油田抗盐聚合物的要求，产量达到了设计值。
There are some problem in plastering engineering in winter. It is difficult to guarantee quality as well as liquid resisting to freezing to be mixed into.
冬季施工中的抹灰工程比较容易出现问题，既使掺入抗冻剂也难保证质量。
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