We are surrounded by a natural playground just perfect for walking, caving, climbing and cycling.
我们周围有一个天然的游乐场，非常适合步行、探险、攀岩和骑自行车。
He had always wanted to go caving.
他过去一直想探索洞穴。
He was also afraid he'd be useless as a coach, caving under the pressure and forgetting all we'd learned in our childbirth class.
他还担心自己无法完成指导的任务，在压力作用下忘记我们在分娩课上学过的一切。
There's something called a trench box - a metal case that holds back the sides of the walls - to be used to stop them caving in when you dig deeper than 5ft.
有一种叫做沟槽支撑的东西——一种用于挡住沟壁的金属箱体——挖土超过五英尺约1.5米时，用它来防止塌方。
Sub-level caving is an efficient and safe mining method.
无底柱分段崩落采矿法是一种高效安全的采矿法。
Sublevel caving without sill pillar is used in Xishimen Iron Mine.
西石门铁矿采用无底柱分段崩落采矿法开采。
The process of ore- drawing in block caving is completed under overburden.
自然崩落法放矿基本上都是在覆盖岩层下进行的。
You will be provided with a caving helmet, head lamp and ropes as required.
您将获得探险所需的头盔，头灯和绳索。
I have always respected her for never caving in to what the public wanted to see from her.
我一直好崇拜她，她从来没有被舆论压倒过。
Exploring unknown caverns and navigating underground rivers is what makes caving so thrilling.
探索未知洞穴，航行于地下暗河使得洞穴探险分外刺激。
Another important reason to say no, Sills says, is it keeps us from caving in to peer pressure.
“另一个说‘不’的重要原因是，”希尔斯说，“它能让我们避免向同辈压力屈服。”
Analyses factors that affect cover caving ability of roof coal in sublevel caving mining method.
分析了放顶煤开采顶煤冒放性的影响因素。
Sublevel caving method without sill pillar is adopted in the south section of Fengshan Copper Mine.
丰山铜矿南缘采区应用无底柱分段崩落法采矿。
There are some questions exist in top-coal caving face like gas accumulation and high cost for treatment.
煤矿井下综放采煤工作面存在瓦斯积聚、治理费用昂贵问题。
Finally, the paper considers that the fully mechanized coal caving mining is helpful to control outburst hazard.
具突出危险性的厚煤层采用综采放顶煤开采法对消突是有积极作用的。
Sublevel caving without bottom pillar is the method of mining used at Huashugou Mine, Jiuchun Iron and Steel Co.
酒泉钢铁公司桦树沟铁矿所用采矿方法是无底柱分段崩落采矿方法。
Where to find: caving can be very risky, so consult local travel agents and go in groups with professional cavers.
去哪里：洞穴探险危险系数可能会很高，所以要咨询当地的旅行社并与专业洞穴探险者一同前往。
Fully mechanized caving mining has became mining technology of high output and efficiency in thick coal seam mining.
综采放顶煤技术已成为厚煤层开采的高产高效采煤技术。
The result showed that the mined-out area can not induce impact ground pressure hazard, but partial caving may occur.
结果表明：该采空区不会发生冲击地压灾害，但可能发生局部冒顶。
The paper is of important instructive importance to reduce loss and depletion by sublevel caving method without sill pillar.
并对今后无底柱分段崩落法降低损失贫化具有重要的指导意义。
We also introduced statistical way to analyze the strata in the initial roof caving and carried out reasonable classification.
采用统计学的方法进行了矿压分析和总结，根据初次放顶顶板情况进行了合理分类。
It was the first time that full-mechanized caving mining was used under sea in the history of coal mining under sea in the world.
海域下煤层采用综放开采在世界海域煤炭开采史上还是首次。
The rock movement between the horizontal section of the top coal caving and inclined slicing of the top coal caving was analyzed.
运用相似材料模拟和数值计算的方法，对水平分段和倾斜分层放顶煤开采引起的围岩移动特征进行了比较。
Sometimes I'm stubborn enough to search for days before caving, and I ask questions only two or three times a year when I have to.
有时，我会执拗到搜索好几天才放弃，而且一年中只在迫不得已的情况下提问两到三次。
The stoping scheme of sublevel caving and continuous mining was optimized, and optimization design of driving work was carried out.
优选出了分段凿岩连续崩矿回采方案，并对采切工程进行了优化设计。
The ore fragment size for block caving is predicted by means of topology, vector field conception and computer simulation technology.
运用拓扑学、矢体概念以及计算机模拟等技术对矿石崩落块度进行预测。
Gas management is a difficult problem at the blasting and caving face in high gas mine. It restricts the safe production of coal mine.
在高瓦斯矿井中，炮采放顶煤工作面的瓦斯治理工作一直是个难题，它严重制约着煤矿的安全生产。
Plus, caving can be a very healthy sport, for the oxygen level is usually higher so basically you are having an oxygen spa as the bonus.
此外，洞穴探险也是项十分健康的运动，因为那里通常氧气含量较高，所以基本上你还可以额外享受一次氧气spa。
Panluo Iron Mine is of medium size and there are many problems in its production which USES the originally designed sublevel caving in strips.
潘洛铁矿属中型生产规模铁矿山，原设计分条分段崩落法在生产中存在较多问题。
Panluo Iron Mine is of medium size and there are many problems in its production which USES the originally designed sublevel caving in strips.
潘洛铁矿属中型生产规模铁矿山，原设计分条分段崩落法在生产中存在较多问题。
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