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- safety shear sub 安全剪切接头
- The safety shear pins consist of three Grade 5 (70 ksi shear strength) 3/16 inch diameter machine screws which connect at a threaded aluminum coupler. 安全剪切销构成三五年级（ 70 ksi抗剪强度） 3 / 16英寸直径机螺钉连接在一个线程铝耦合。This is illustrated in Figure 5.;这是说明了在图5 。
- We too will make this kind of safety sub. 我们也要造这种安全接头。
- 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。
- 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。
- He is always apprehensive for his son's safety. 他经常担心儿子的安全。
- The mother is worried about her son's safety. 这位母亲担心她儿子的安全。
- While you live in safety, consider unseen dangers. 居安应思危。
