Insulating foam - filled tubes and solid rods for live working 带电作业用绝缘泡沫材料填充管和实心棒
2.
Hydrometric determination - liquid flow in open channels and partly filled pipes - guidelines for the application of doppler - based flow measurements 流体比重测定.明渠和部分填充管里的液体流.基于多普勒的流量计的应用导则