A large U-Mo deposit was found on the northern margin of north China Platform, where the Mesozoic and Cenozoic volcanics are developed. This area is widely covered by the Quaternary sediments.
在华北地台北缘中新生代火山岩发育区，发现大型铀钼矿床，其外围被第四系广泛覆盖。
Arm length to ensure that all projects can be covered and a slight margin is appropriate.
臂长以保证能够覆盖全部工程并稍有余量为宜。
Violating margin requirements, however, triggers a margin call and open positions are automatically covered until requirements are met again.
然而，违反保证金要求，保证金和持仓最低要求得不到满足时，会造成很大的影响。
Violating margin requirements, however, triggers a margin call and open positions are automatically covered until requirements are met again.
然而，违反保证金要求，保证金和持仓最低要求得不到满足时，会造成很大的影响。
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