How to prevent concrete from freezing - thaw and carbonation is very important.研究如何防止混凝土冻融、碳化具有重要意义.It's so cold the snow doesn't get a chance to thaw...天太冷了，雪根本化不了。At least this second meeting had helped to th...
An aircraft gaining speed during take - off is evidently not an inertial system.一架正在加速起飞的飞机,显然不是惯性系统.This area of study is central to the technology of inertial navigation and gyroscopic stabilization.这个研究领域是惯性导航和陀螺稳定器技术...
I told them to be quiet and go to sleep.我叫他们不要说话，马上睡觉。Sit down and be quiet in front of your elders and betters.在长辈和上级面前要老老实实地坐着。"Och be quiet then," Shawn said.“哎呀，安静一下吧，”肖恩说道。...
All wooden dunnage or packing material must be bark free.所有木衬板或填充料必须任意是吠声.B . All cargo inside warehouse without covering and partly dunnage with double straw squares prior loading.所有货物仓库堆存,无覆盖. 装货前部分用双层草耙隔垫.Dunnage bagg...
Books provide children with ideas and a stimulus for play.书不仅给孩子们以思想，而且使他们玩得更有意思。Regard each failure as a stimulus to further efforts.把每次失利看成对进一步努力的激励.Poverty is a stimulus to industry.贫穷能使人勤劳....