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1. The gassing factor of the new gas mask is 20 times higher than that of the old one.
新型防毒面具的气体渗透系数是旧型防毒面具的20倍。
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2.The gassing factor is a critical factor in determining the effectiveness of a gas mask.
气体渗透系数是决定防毒面具有效性的关键因素。
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3. In order to improve the gassing factor of the gas mask, scientists have been working on developing new materials.
为了提高防毒面具的气体渗透系数，科学家们一直在研究开发新材料。