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- safety pillar against water-inrush 防水煤柱
- safety pillar under water-bodies 防水煤岩柱
- APPLICATION OF SPLIT TUBE IN CONTROLLED BLASTING FOR STOPING OF A SAFETY PILLAR 劈裂管在保安矿柱回采控制爆破中的应用
- Study on safety pillar for fault protection in strip mining under building 建筑物下条带开采断层保护煤柱留设研究
- No safety pillars shall be mined without authorization and no dangerous methods, such as water bursting, blasting and breaking through roadways, which may threaten the production safety of adjacent coal mines shall be adopted. 采矿作业不得擅自开采保安煤柱，不得采用可能危及相邻煤矿生产安全的决水、爆破、贯通巷道等危险方法。
- No safety pillars shall be mined without authorization and no dangerous methods,such as water bursting,blasting and breaking through roadways,which may threaten the production safety of adjacent coal mines shall be adopted. 采矿作业不得擅自开采保安煤柱，不得采用可能危及相邻煤矿生产安全的决水、爆破、贯通巷道等危险方法。
- It seemed an eternity before news of his safety reached her. 他平安的消息到达她那里之前，那段时间似乎是无限漫长的。
- Thanks to I had tied then the safety belt. 幸亏我当时系上了安全带。
- The ship came about and headed back for safety. 这只船掉过头往回开到安全地带去。
- I don't wonder you were anxious about their safety. 你为他们的安全着急，我是不奇怪的。
- In the end they reached a place of safety. 他们终于到达了一个安全的地方。
- When do the new safety rules come into force? 新的安全规则何时生效?
- The safety precautions are totally inadequate. 这些安全措施完全不合格。
- I'm worried sick about my son's safety. 我十分担心我儿子的安全。
- If I lose my job, I've got no safety net. 我丢掉这份工作就无计可施了。
- We're all concerned for her safety. 我们都为她的安全担忧。
- The new aircraft is undergoing safety tests. 这种新飞机正在接受安全性能检验。
- His long absence raised fears about his safety. 他长期不在引起了大家对他的安全的担心。
- The new safety regulations are now in force. 新的安全规则现已生效。
- Feasibility study on recovery of safety pillar in process of mining flat-grade thin orebody 缓倾斜薄矿体保安矿柱回收的可行性研究
