protection zone of water source 水源保护区
protection zone of water resources 水资源保护区
dead zone of relay protection 继电保护死区
width of protection zone 围护带宽度
level of protection zone 保护区级别
If [sprays are] used, people can protect themselves by opening Windows, avoiding the application near the breathing zone, and by using masks or other types of personal respiratory protection.
如果一旦使用了喷雾剂,可以通过开窗,不在呼吸区域使用,应用面罩或其他的个人呼吸道保护措施来保护自己。
For the first two or three months at her new job, she spent most of her spare time exploring every corner of this "cultural relic protection zone," an area of a little over two square kilometers.
在新工作开始的最初两三个月里,她用大部分闲暇时间探寻了这个略微超过两平方公里大小的“文物保护区”的每个角落。
Protection zone is located in the center of the island and spreads to the other three directions, besides reaching the sea in the west.
保护区位于岛的中央,向东、西、南三个方向伸展,其中西面延伸至海。
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