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- Safe net system is a passive control technique for rockfall in recent years. 危岩是我国山地一种主要地质灾害类型,拦石网是近年应用的一种落石柔性被动防护系统。
- On the other hand, study of rockfall doesn't comply with the characters of safe net system. 另一方面落石运动研究成果没有同拦石网系统特点相结合。
- Social security is protective umbrella and the social safe net of social group as the important means of citizen resistance risk and crisis. 摘要社会保障作为公民抵抗风险与危机的重要手段,是社会群体的杜会安全网和保护伞。
- To study safe net system,on the one hand,much attention is paid to system itself without care of characters of rockfall trace and initial motional parameters. 将落石在坡面运动状态归结为跳跃、滚动和滑动,并以危岩起始运动速度作为初始速度,通过分段计算得到落石沿坡面的完整运动路径。
- Finally based on the results of rockfall trace calculation combined with the characters of safe net system, the authors presented the conception and method of design of safe net system. 最后,根据落石运动特性计算结果,结合拦石网系统特点,提出了拦石网基于落石特性计算布设的原则和方法。
- Is any of these wild fruits safe to eat? 这些野生水果有哪一种是安全可吃的吗?
- The pilot manages to glide down to a safe landing. 驾驶员设法使飞机滑行下降安全著陆。
- He opened his safe and drew out a petty-cash box. 他打开保险柜取走一个小钱匣。
- She was a bit on edge till she heard he was safe. 她听到他安然无恙才放下心来。
- Always keep your driving licence in a safe place. 驾驶执照一定要妥善保管。
- He hit the tennis ball over the net. 他把网球打过了网。
- The thieves got away with the contents of the safe. 那些窃贼偷走了保险箱内的东西。
- The ball glanced off the goal post into the net. 球撞到球门柱上斜飞入网。
- The net weight of this jar of coffee is 180 grams. 这瓶咖啡净重180克。
- The train is a safe means of transportation. 火车是一种安全可靠的交通工具。
- Anxiously await your safe arrival. 急切地等待您安然到达。
- There is no safe landing on that coast. 那一带海岸没有安全的登陆处。
- They have got home safe and sound. 他们已平安到家。
- If I lose my job, I've got no safety net. 我丢掉这份工作就无计可施了。
- The fish tangled in the mesh of the net has died. 那条卡在网眼上的鱼已经死了。