原油长输管道浅埋及低洼段的热能损失较大，采用聚氨酯硬质泡沫保温层效果良好（其保温效率达86.3％）。
Shallow buried and lowland laid pipelines, on account of their greater energy loss, are better to be insulated with hard polyurethane (Its insulation efficiency goes up to 86.3%).
甲烷泄露一直以来就是一个隐忧因为虽然甲烷在空气中比二氧化碳分散地快但是它保温的效率却更高。
Methane leaks have long been a concern because while methane dissipates in the atmosphere more quickly than carbon dioxide, it is far more efficient at trapping heat.
这些小型发电机几乎与巨型发电机的效率相同，并且产生的余热可用于家庭保温和烧水。
These miniature power plants are almost as efficient as huge generators and the heat they produce can be used to heat our homes and water.
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