▍1. CalculationOfDrillPipe
用来设计和计算钻杆和接头的各个性能,具有一定的参考价值。(Used to design and calculate the drill pipe and joints of the various performance, with a certain reference value.)
用来设计和计算钻杆和接头的各个性能,具有一定的参考价值。(Used to design and calculate the drill pipe and joints of the various performance, with a certain reference value.)