说得准确点，那就是大质量的年轻恒星产生的高能量强光和恒星风在蒸发并驱散孕育它们的“恒星孕育场”，即图中黑暗区。
More precisely, the energetic light and winds from massive newly formed stars are evaporating and dispersing the dark stellar nurseries in which they formed.
为了遵守要求减少水银蒸发量的规定，其他火葬场安装了新设备。一些火葬场正在利用火化余热来产生利润，否则就会白白浪费。
As other crematoria install new equipment to comply with rules on reducing mercury emissions, some are making profitable use of excess heat that otherwise would be wasted.
2012年英国的火葬场有义务在2012年前让水银蒸发量减半，到2020年要实现无蒸发。火葬场的水银蒸发主要产生于牙齿填充物。
The onus is on UK crematoria to halve mercury emissions, which come mainly from tooth fillings, by 2012 and eliminate them altogether by 2020.
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