Heat gain may come from the following sources.
热量的增加可能有下列一些来源。
Heat loss and gain in a well insulated home occurs mostly through the Windows.
在保温措施很充分的家庭里面，热量的得失大部分是通过窗户发生的。
Heat steaming treatment on leather and fabric boots will gain higher quality.
真皮或布靴可加蒸汽处理，提高鞋面之品质。
Heat steaming treatment on leather and fabric boots will gain higher quality.
真皮或布靴可加蒸汽处理，提高鞋面之品质。
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