Compressed air is the cutting power, little cost, safe and without damage.
以压缩空气作为切割气源，成本低，安全无危害。
The experiments by 3 monkeys have evidenced that the selected operation passage to the target is safe and without damage to the adjacent important brain structures.
三只猴子的实验证明我们所选定的到达靶点的手术入路是安全的，不损伤相邻脑部的重要结构。
The utility model is safe, and the board can be hung on or taken off conveniently without damage to the user.
本实用新型安全可靠，挂摘板子方便，不会伤人。
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