The existing hydraulic system always have problems of temperature rise, run-ning stability and anti-interference of the ......

<正> The existing hydraulic system always have problems of temperature rise,runningstability and anti-interference of th......

针对千米定向钻机给进工况对给进系统的要求，通过对现有钻机给进控制的分析对比，利用负载敏感的基本原理，开发出千米定向钻机的负载敏......