Besides, some food utensils are made of melamine material, these utensils themselves are safe, but will be degraded into toxic substances during microwave heating.
此外，有些食具也是用三聚氰胺为材料加工而成的，这些食具本身比较安全，但是在微波炉高温加热中会分解有毒物质。
And thus, it lays a foundation for the final international adoption of the MCPVT method as a standard in evaluating the violence of self reactive substances in heating decomposition.
从而为MCPVT最终成为国际上评价自反应物质受热分解反应激烈程度标准方法奠定了基础。
Such substances are liable to spontaneous heating or to heating up in contact with air and then liable to catch fire.
物质可能自我发热，或因为与空气接触而发热而可能引起燃烧。
Most substances expand on heating and contract on cooling.
大多数物质热胀冷缩。
Most substances expand on heating and contract on cooling.
大多数物质热胀冷缩。
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