在双层地基河堤背水侧采用盖重土层是一种有效的防止渗透变形的措施。
For levees on double layer foundation, adding weighting soil to the landside slope is an effective measures to prevent the foundation from seepage failure.
在发现漏油几天后，路易斯安那州的钢铁工人开始建造这个近70吨重的钢盖。漏油发生在和钻井平台相连接的一个受到损害的油井。
Steel workers in Louisiana began building the nearly 70-ton cap in the days after the leak was discovered at the site of a damaged well that had been connected to an oil rig.
有一天，为了调节一下气氛，吉盖克斯把一只塑料恐龙演绎为一只真龙，并加入了在重骑兵队伍中游荡的巫师和巨怪。
One day, to spice things up, Mr Gygax turned a plastic dinosaur into a dragon and mixed in wizards and trolls among the men-at-arms.
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