drill -test的意思|示意

In this test, the drills life is also enaged in. The result showed that the top Angle of drill is influenced remarkably for the drill life.

在此基础上，对较优的钻型初选了顶角和后角对钻头寿命的影响进行了试验，结果表明，顶角对寿命的影响显著。

This thesis introduces briefly the structures, test situations and main technical parameters of the drill rig.

本文着重介绍了钻机的结构特点、试验情况、主要技术参数等。

By testing vibration frequency, moving speed of drill rod, atmospheric temperature, pressure and consumption, a test report is automatically worked out.

通过测量凿岩机工作时的振动频率、钎杆转速、气温、气压和耗气量等性能参数，自动生成测试报告。

At noon ET Friday, a drill was launched by natural disaster experts at San Diego State University to test how social media would be used to respond to a crisis.

在美国东部时间周五中午，由圣迭戈州立大学的自然灾害研究专家们发起的一项演习正在进行中，该演习希望了解社会媒体在危急关头将有怎样的反应。

Repositories may engage in activities involving all staff: For example, conduct an evacuation drill to acquaint staff members with the evacuation plan and to test its effectiveness.

单位可开展很多全员参与的活动：例如，组织一次疏散演习，使全体员工熟悉疏散逃生图并检验其有效性。

A dozen global gas-exploration companies have promised to drill as many as 120 test Wells over the next few years to find out.

全球十来家天然气勘探公司已承诺，将在未来几年内钻探出多达120口的试验井来采气。