无毒无爆炸危险的环境 safe atmosphere
一般情况下，无爆炸危险，但仍应适当通风，以改善施工环境。
This paint is not dangerous of explosion in general, but ventilation is necessary for a good application condition.
断路器应安装在无爆炸危险和无导电尘埃、 无足以腐蚀金属和破坏绝缘的地方；
There must be not any explosive medium, and there must be not any gas which would corrode metal or any conducting dust which would destory the insulation;
电接点压力表适用于测量对铜及铜合金无腐蚀、无爆炸危险、非结晶的各种液体、气体等介质的压力。
USE: Electric- contact pressure gauges are used for measuring positive and negative pressure of liquids and gases which are nor corrosive to copper and copper alloy and not explosive and crystal.
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