双管的的英文

例句与用法

1. The oboe is a double reed instrument which could trace its ancestor to the ancient " aulos " of 480 - 470 b . c . , and is a direct descendent of the " shawm " of the 17th century
   公元前480 470年的古希腊绘画双管的吹奏者图中的双管欧罗斯" aulos "可以说是双簧管的祖先，而现代的双簧管实际是从十六世纪的萧姆管" shawm "演变出来。
2. Abstract : this article introduces the modifications of sulfur detection device using conbustion - volume method by converting single pipe to dual pipe structures , and discusses impacts on detecting accuracy of vacuum pumping flow and its deficiency
   文摘:本文介绍了燃烧-容量法测硫装置单管转双管的改造，讨论了真空泵抽空气流量对准确测定的影响及不足之处。