A blade guard is fitted to protect the operator.为保证操作人员的人身安全安装了桨叶保护罩。The RE - aluminizing technique and coating structure of gas turbine blade made of alloy M 38 G are studied.研究了涡轮叶片材料M38G合金渗稀土 - 铝涂层的工艺过程和组织结构.The matad...
纵情狂欢了一夜后,他看起来累了。After a long evening of partying he looked tired.船员在救生筏上呆了两天两夜。The crew spent two days and nights in their raft.流通领域的货币供应量一夜骤减。The supply of money in circulation was drastically reduced overnight....