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- A result of safety evaluation was educed according to the rules of credible recognition after a index system in colliery ventilation safety evaluation was established. 摘要运用未确知测度理论建立矿井通风系统安全评价指标体系，构造了未确知测度模型，计算了各评价指标的未确知测度值。
- Exemplification indicates that the evaluation result is consistent with actual instance if the method of unascertained measure evaluation is applied in colliery ventilation safety evaluation. 实例表明，用未确知测度评价模型对矿井通风安全进行评价，其计算结果与实际运行情况很吻合。
- Ventilating safety helmet with holes,high capability of ventilation and sunstroke prevention. 透孔通风式安全帽，适用于夏季露天作业工人佩带，通风防署性能好。
- 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。
- This is a room with good ventilation. 这是个通风良好的房间。
- 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。
- The report is scathing about the lack of safety precaution. 该报道对缺乏安全预防措施一事严加指责。
- Application assessment of coal mine safety monitoring and control network system in mine ventilation safety management 煤矿安全监控联网系统在通风安全管理中的应用评价
- He is always apprehensive for his son's safety. 他经常担心儿子的安全。
