Users should be able to drill down from one summary table into another summary table, ultimately arriving at the fact table (if that's the level of detail they need).
用户应该能够从一个汇总表向下深入到另一个汇总表，最终达到事实表(如果事实表是他们需要的细节级别)。
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。
For every piece, the stiff, hollow pipes that connect the drill assembly with the rig at the surface have to be assembled as the drill is lowered and dismantled when it comes up again.
每一段坚实、中空的连接钻取机索导管的冰芯只能被切碎，因为钻取机再次出来时变得更低了也更细了。
Reinforced back panel for a flat screen TV; no need to drill holes in the wall and cords can be hidden at the back.
加强型背板，可用来安装平面数字电视；无需在墙上钻孔，而且，可将电线隐藏在背面。
By sampling the drill cuttings and using a microcomputer at the well site, the rock drillability can be determined by the energy law measure system.
能量法岩石可钻性测定系统是通过采集钻井井口岩屑并利用微机来测定岩石的可钻性。
Indeed, after all the various attendant service needed to drill a well are summed up, there could be as many as a hundred service and supply companies working at the drill site at one time or another.
实际上，累计钻一口井所需要的服务，在一个钻井场地同时或不同时有一百多家服务或供应公司工作。
Point angles at outer corner and chisel edge corner are proposed to be used as the drill design parameters to determine the type uniquely and the relief Angle is used as a supplement parameter.
针对该钻型的特点，提出用钻尖主刃的外缘和横刃转点处的锋角作为其设计参数值。
Be careful not to brace with your palms at any point of this drill, but spear with the fingertips.
小心不要支撑与你的手掌在任意点的，但枪钻的指尖。
"The drill later this month should not necessarily be targeted at a certain country... because anti-missile cooperation is a component of long-term bilateral military cooperation," Wu said.
“钻本月晚些时候应该不一定是针对某一个国家……因为反导合作是长期双边合作的一个组成部分，”吴说。
The engineer in charge of the rescue operation said a more powerful drill would be needed to dig a new shaft at the San Jose gold and copper mine, and the dig would take at least 120 days.
负责营救任务的工程师表示，他们将用重型钻孔机在圣何塞金铜矿开挖一个新矿井，而开挖工程至少需要120天。
The signals we get at the top of the drill string and at the surface are continuous, so only after crosscorrelation can the useful information be available.
由于在钻柱顶端和地面接收到的信号是连续的随机信号，因此只有将两个信号互相关才能得到反映地下构造的有效信息。
At no time during the lifeboat Drill will crewmembers be allowed into the lifeboat while lowering, raising or moving the boat from the stowed position.
救生演习时，任何的船员均不可以在放艇、收艇或移开存放位置的时候待在艇内。
At no time during the lifeboat Drill will crewmembers be allowed into the lifeboat while lowering, raising or moving the boat from the stowed position.
救生演习时，任何的船员均不可以在放艇、收艇或移开存放位置的时候待在艇内。
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