A: What is flammability?

A：可燃性是指什么？

There is no flammability all around.

周围无易燃易爆物体。

What is flammability?

可燃性是指什么？

The coal layout is high gas, soft and flammability.

煤层为高瓦斯、松软、易燃厚煤层。

The lower flammability limit for the vapor is 1.5% in air.

给蒸汽的更低可燃性限度是空气的1.5%。