在深约0.5英寸，间隔12英寸的条播沟里播种。
The racket of drills and electric saws went on past midnight.钻孔机和电锯的噪声过了半夜还继续响着。
We replaced hand picks with pneumatic picks and electric drills.我们把手镐换成风镐和电钻.
The soldiers had drills in the use of the bayonet.士兵们操练刺杀.
drills were set to work without intermission.螺旋钻在一刻不停地挥舞着.
Taps, reamers, drills, saws, milling cutters, burnishing tools, and so on, have all been successfully plated.丝锥 、 铰刀 、 钻头 、 锯片 、 铣切刀具 、 磨光工具以及其它等等, 所有这些方面的片镀都是很成功的.
We saw a family of drills at the zoo.我们在动物园看到一群鬼狒.
The conclusion presents important references for design and selection of auger drills.研究结果对螺旋钻具的设计和选用具有重要指导意义.
Available with our All Bearing Indexable L Type drills.比较实用的是我们的全方位L型花健钻.
Chinese farmers were using drills as early as the 2 nd Century BC.早在公元前2世纪中国农民就已经在使用播种机.
Attend emergency drills and training for theft, fire and injury prevention.参加紧急情况实战训练和盗窃 、 火灾、伤害预防方面的应对培训.
The sound of hammers and drills made a symphony in the mine.风锤、钻头的声音组成了矿山生产的交响乐.
The soldiers will practice their drills early in the morning.士兵们将在清晨操练.
These include lathes, mills, drills, saws, and a so on.这些包括车床, 磨具, 钻子, 锯, 和那么.
The teacher piped the pupils down after doing drills.做完操之后,教师吹哨让学生解散.
