水能使物质降到燃烧点以下。
所以太空笔由金属制造，油墨的燃烧点也高于普通油墨。
This space pen is made of metal, and the ink has a much higher ignition point than regular ink.
炉膛内的木柴燃烧点尽量靠近返料腿处，让返料腿充分吸收热量。
The wood furnace combustion point as close as possible to recycle legs, allowing recycle legs fully absorb heat.
不能自己制造火焰，最早的人们存储火可能通过保持缓慢燃烧点着的原木火石或是装在罐子里的木炭。
Unable to make flame for themselves, the earliest peoples probably stored fire by keeping slow burning logs alight or by carrying charcoal in pots.
不能自己制造火焰，最早的人们存储火可能通过保持缓慢燃烧点着的原木火石或是装在罐子里的木炭。
Unable to make flame for themselves, the earliest peoples probably stored fire by keeping slow burning logs alight or by carrying charcoal in pots.
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