我们用火焰测试编制了一个包含多种元素的光谱库。
A kind of spectroscopic library of elements was compiled using flame tests.
而且在你的Ipad和Iphone上面，你还可以操作其他自然元素，比方烟雾和火焰。
And it has other natural elements like smoke and fire that you can manipulate on your iPad or iPhone.
通常是在敞开的气火焰上加热，就把对神经有强烈毒害作用的元素释放到了环境当中。
Typically, heating occurs over an open gas flame, releasing the potent neurotoxic element into the atmosphere.
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