Mozart was, all , not a mere purveyor of music but the supreme dramatic geniuses all time.莫扎特 毕竟 不仅是作曲家,而且是空前的最大戏剧天才之一....a purveyor of female undergarments...女式内衣供应商Silence , purveyor of gossip, do not spread that repor...
因为沉积作用是快速的, 分选作用和层理就得不到很好的发展.Because deposition is rapid, sorting and stratification are generally not well developed.轻的籽粒可以通过空气动力,即气流分选机清理出来.Light kernels may be removed by a pneumatic or air seperator.砂粒在波浪分选作用下从粉砂及粘土中...
较轻的推进器采用液态氢, 较重的采用自燃推进剂.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.这个工厂为弹道导弹生产推进剂。The factory produces propellant for ballistic missiles.挤压 式 发动机对推进剂中溶解的气体特别敏感.Pressure - fed engine...