But we don't allow anybody to drill on our land without our permission.
但是，我们不允许任何人在未经我们允许的情况下，在我们的土地上钻探。
It is cheaper to drill for oil on land than at sea.
在陆地上开采石油比在海上要便宜。
By the project performance, it has introduced some methods such as geophysical prospecting, dynamic and static strain observation to study the relation between drill-hole pumping and land deformation.
论文通过工程实例，介绍了采用物探、动静态应变观测等方法综合研究钻孔抽水与地面变形之关系。
It is used to control the drilling direction of the land or offshore platforms. It can provide accurate drilling direction and measure the temperature and magnetic intensity around the drill.
该系统主要用于陆上、海洋平台等方面的定向钻进，可以精确地了解钻头的航向，还可以测量钻头处的温度和磁场强度。
It is used to control the drilling direction of the land or offshore platforms. It can provide accurate drilling direction and measure the temperature and magnetic intensity around the drill.
该系统主要用于陆上、海洋平台等方面的定向钻进，可以精确地了解钻头的航向，还可以测量钻头处的温度和磁场强度。
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