... 套管护孔 line a hole 用套管护孔 line with casing 维护 safeguard; defend; uphold; keep; maintain; upkeep 维护法律面前人人平等的原则 uphold the principle that all men are equal before the law; 维护国家主权 defend state sovereignty; 维护民族尊严 vindicate national honour; defend national honour; 维护人民的利益 safeguard the people's interests; 维护安定团结 uphold [maintain] unity and stability; 维护国际和平与安全 maintenance of international peace and security; 维护世界和平 safeguard world peace; 维护世界和平力量 forces working for safeguarding world peace; 维护祖国统一 safeguard the unity of the motherland; 维护团结 uphold unity; 维护人民的权利 maintain the people's rights; 维护正义 the maintenance of justice ...
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And he said rescuers were debating whether they would in fact need to line the rescue tunnel with metal casing as planned, a process that would take several days.
并且他说营救人员正在辩论他们是否实际需要铺设金属壳的营救管道作为计划，这个过程将花费几天！
The dog chain, the movable end of which is connected with a dog ring by a fastener is connected with the line wheel by a line wheel casing mouth and wound.
活动端用扣具与狗项圈相连的狗链通过线轮壳口与线轮相连并卷绕起来；
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