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1·Please don't be having places of flammable gas or flammable vapour that are using an instrument.

请不要在有可燃性气体或可燃性蒸气的场所使用本仪器。

2·A place in which an explosive atmosphere consisting of a mixture with air of flammable substances in the form of gas, vapour or mist is present continuously or for long periods.

爆炸性环境中的爆炸混合物以气体、蒸气或薄雾形式连续出现或长时间存在的场所。