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...
呼气，膝部放松向胸部靠拢。Breathe out and ease your knees in toward your chest.他的一条腿不得不从膝部以上截断。He had to have one leg amputated above the knee.送信人弯下腰来，挠着膝部被绑腿磨红的地方。The messenger bent and scratched at his knee where the strapping chaf...
They were anxious to bring the washing in before it rained.他们急于在下雨前把洗好的衣服收进屋子。What if it rained and then froze all through those months?要是那几个月一直又下雨又冰冻怎么办？Most of the games have been rained off.大部分比赛都因下雨而暂停了。...
Cortisone should never be used as It'suppresses the immune system of an already compromised animal.Cortisone(可的松)是绝对不能使用的,他会影响到动物的免疫系统.However, cortisone therapy and medicinal implants kept Kennedy alive.然而, 可的松治疗和药...
航空航天系列.飞行器用电缆.试验方法. 第508部分: 电镀板厚度.Aerospace series - Cables electrical , aircraft use - Test methods - Part 508: plating thickness.用电缆直接向接受器传输信号的电视.A communications cable as one used to transmit telephone or telegraph si...