El Salvador produces 100,000 tons of refined copper annually.萨尔瓦多每年生产10万吨纯铜。This technique is becoming more refined and more acceptable all the time.这种技术变得越来越完善,越来越受人欢迎。His speech and manner are refined.他谈吐优雅,彬彬有礼。...
一种把数据或信息加到现存的记录中去的过程或方法.A procedure for adding data or information to an existing record.将串行数据转换为并行数据的过程或方法.The procedure of converting serial data into parallel data.具体设备要根据所选的 模切 操作的方式或方法而不同.The specific device you wan...
Thermal analysis of ( PCN ) and ( PA ) indicated t - hat the ( Teo ) data by DTA testing for ( PCN ) and ( PA ) were , 453 and 426 respectively.( PCN ) 和 ( PA ) 的热分析 ( Teo ) 值分别为453和426 ( DTA ).Thepowder is characterized...
This welding backing is specially designed for hand holes and manholes welding.本衬垫适用于入孔,出孔的焊接使用.Air investigations are absolutely necessary before entering any manholes.空气调查是绝对必要的,方可进入任何沙井.Interior surfaces of manholes a...