Both inflammation and explosion are chemical reactions, for which three prerequisites are required, i. e. certain fibre dust density, certain ignition energy andcertain oxygen density(%);
燃烧与爆炸都是化学反应，必须具备纤维粉尘达到一定浓度、遇到一定点燃能量、在空气中有一定含氧浓度（％）这三个条件。
Relationship between gravimetric and fibre concentrations of airborne asbestos dust has been established by simultaneously sampling with two methods on 15 sites in an asbestos paper mill.
本文用现场平行采样的方法研究石棉造纸行业的各扬尘点粉尘重量浓度与纤维计数浓度间的转换关系。
Filter felt make up of fire resistant and antistatic fibre is trial produced, it is safe and durable in use for com-pound dust filter.
以阻燃纤维和导电纤维试制过滤毡，用于复合过滤器，既安全寿命又长。
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