开采

The Stone Age did not end for lack of stone and the Oil Age will end long before the world runs out of oil.

电视喜剧演员斯蒂芬·科尔伯特石器时代并未因缺少石头而终结，倒是石油时代会远在石油最终开采完之前宣告终结。

Stope ground pressure control is a key issue in an open stope mining process.

采场地压控制是空场采矿法开采工艺的关键环节。

The technique of stope 1caching has been applied to industrial process in Uranium Mine No.

原地破碎浸出采矿是我国铀矿开采工业中最近发展起来的一项新技术，这项技术在七九四矿已经推广应用了三年。

On the base of grade model and the existing mining system, the exploration workflow that contain the stope and working surface is designed.

并以品位模型为基础，结合矿山已有开采系统，进行了矿山设计，设计了采场和工作面。

Interestingly enough, the hazards of asbestos were recorded as early as Roman times. Both Pliny the Elder and the first century geographer Strabo noted that workers exposed to asbestos had many health problems. Pliny the Elder recommended that quarry slaves from asbestos mines not be purchased because "they die young."

古希腊历史学家、地理学家斯特拉博和古罗马博物学老普利尼已经注意到，那些开采石棉矿和编织石棉布的奴隶的身体健康有各种问题，特别是他们容易得肺病。

What do oilmen want to achieve as soon as they strike oil?

但是，我们不必像开采其他矿藏那样，把人送到地下去把石油取出。

Lesson 13 The search for oil 探寻石油 What do oilmen want to achieve as soon as they strike oil?

但是， 我们不必像开采其他矿藏那样，把人送到地下去把石油取出。

Of coal, as contrasted with coal obtained from a strip mine .

关于煤，与从露天矿中开采的煤相对的。

Strip mine is another form of surface mining.

露天剥离矿是露天开采的又一种类型。

To mine from a strip mine....

开采露天矿2。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。