flame contact ignition 火焰接触点火
flame-retardant contact adhesive 防火性万能胶
flame band contact ignition 火焰接触点火
The device shall be exposed to direct flame contact for 12 seconds using the instrument specified.
应使用规定的仪器将装置与火焰正面接触12秒。
To show you what it looks like up close, I covered my hand in the gel and then painted on some thinned-down contact cement, which produces a very nice opaque yellow flame when lit.
为了使你更清楚的看到这一点，我在手上涂满了这种胶，并且还加入了一种在燃烧时可以发出透明的黄色火焰的胶材料。
It can freeze whatever it contacts (including your eyes), it is heavier than air and can suffocate you, and it produces a poisonous gas when it comes in contact with an open flame.
它能使任何接触到的物质结冰(包括你的眼睛)，它比空气重，会使你窒息而死，当遇到明火时，它会释放出有毒气体。
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