It is significant to the imminent prediction through researching infrasound abnormality and accrued mechanism.但目前尚不能确定震中位置,并且对震前次声产生的机理还不是很清楚.The mere mention of the words 'heart failure', can conjure up, to th...
氢气在工业上广泛用于制氨。Hydrogen is used extensively in industry for the production of ammonia.氢气是一种无色 、 无味的气体.Hydrogen is a corlourless, odourless gas.氢气对于气球来说是一种有用的气体, 它比空气轻.Hydrogen is a useful gas for balloons. It is lighter th...
通过挥发或离心作用提高胶乳的浓度.The latex concentration is raised by evaporation or centrifugation.结果表明,燕化公司研究院研制生产的YH -05 羧基丁苯胶乳各项性能指标与Dow-675、SD -656 相当.The results showed that behavior of YH - 05 similar to Dow - 675 and SD - 656.阐述...
Some of them are like setting a trap ( with obstructions ).有些像是设的陷阱 ( 有障碍物 ).They went ahead of us to clear the road of obstructions.他们走在我们前面清除路上的障碍.Ruler shows the distance in meters to nearest obstructions.标尺显示到最近的阻碍的距...