1.
drill ,electric, hand-held (incl. rock drills)
电动钻具,手持式（包括岩石钻具）
2.
electrically driven rotary sidewall sampler
电动钻进式井壁取心器
3.
Simulation Analysis on ZJ70D Electric Drilling Machine Powered by Electric Network at SK1 Oil Well
SK1井ZJ70D电动钻机电网供电仿真分析
4.
Reactive power compensation and harmonic suppression of oil drilling rig
石油电动钻机的无功补偿及谐波治理
5.
"a loud, harsh noise made by or as if by a powered tool of this kind."
由或好象由这类电动钻发出的响而刺耳的声音.
6.
The technical level and development trend of chinese AC VF drilling rigs
我国交流变频电动钻机的技术水平和发展趋势
7.
a hammer driven by electric motor.
用电发动机驱动的钻。
8.
hand-held non-electric power-operated boring tools
手提式非电动机动钻具
9.
a power drill will chatter if the bit is loose.
如果钻头松动,电钻会嘎嘎作响.
10.
diesel electric driving rig
柴油机发电驱动钻机
11.
foot engine with electric motor
牙科脚踏电动二用钻机
12.
portable electric tool
（电钻电锯等）手提式电动工具
13.
a rotating drill powered by an electric motor.
用电发动机驱动的旋转的钻子。
14.
Production of electrical tools, such as electric drills impact, angle angle grinder, saw, electric drill and curves.
生产各类电动工具，如冲击电钻，角向磨光机、电钻和曲线锯等。
15.
Design of SCR D.C. Drive System Using Utility Net for Rig
钻机电网供电可控硅直流电驱动系统设计
16.
drill ,breast, hand (excl. power-operated)
手摇钻,胸压式（不包括电动的）
17.
Application of VFD and SCR Compound Driven on 5000m Rig
5000m交直流复合电驱动钻机应用
18.
Simulation of Electric Rig Hoisting System Driven by AC Variable-Frequency Motor
交流变频电驱动钻机起升系统的模拟