水下挖掘机 meaning in Chinese

underwater excavator

Correspondingly , its theory is up to developed to a higher level . in this thesis , taking the risk management activities of the two parties of insurance as the perceptive and the process of engineering insurance as the clue , the establishment of risk management system is analyzed during the process of risk identification and evaluation , insurance contract arrangement , disaster prevention and loss reduction , and the compensation management . furthermore
本文在查阅大量文献的基础上，对疏浚泥泵及排泥管道的动态特性现象进行了分析，并应用面向对象的c + +语言开发了比较通用的计算机程序，对紧急关阀、水下挖掘机具(如绞刀、斗轮等)吸泥口堵塞以及事故抛泵等典型的动态工况特性进行了计算和分析。