Terms for subject Drilling containing variable

English	Chinese
constant rotary speed variable weight	稳定转速改变钻压钻井法
constant rotary speed variable weight	定转速变钻压法
control variable	控制参数
drilling rate equation in two variables	二元钻速方程
drilling variable	钻井参数
drilling variable initialization	钻井变量预置
highly variable gauge stabilizer	高可变径稳定器
Hydril variable ram	海德里可变径闸板
nozzle with iso-variable	等变速喷嘴
positive infinitely variable	无级变速
variable bore ram	防喷器变径闸板
variable diameter ram	防喷器变径闸板
variable displacement pump	可变排量泵
variable drilling load	可变钻井负载
variable resistance caliper	可变电阻式井径仪
variable speed fluid drive	变速液动
variable weight and rotary speed	选择钻压-转速最佳配合的钻井方法
variable weight and rotary speed	最优化钻井方式变钻压和变转速