... backfill compactor 回填土压实机 backflow barrier 逆止阀 background heating 背景供热 background noise level 背景噪声级 ...
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background d heating 背景供热
She has no business background but recently received two chickens and a goat from the bank and started selling eggs and heating oil from her house.
乔安特没有什么商业背景，不过最近从银行里领到2只鸡和一头山羊，她便在她房子那里开始卖鸡蛋和燃料油。
Medium frequency heating furnace is an electronic device that requires background clean, but very few manufacturers the truth can do.
中频透热电炉是一种电子设备，要求工作背景整洁，但事情的真实情况上很少厂家能做到。
Taking Urumqi City supply heating system as background, the article USES clean production thinking way to find and solve thermal energy waste in supply beating course.
以乌鲁木齐市供采暖系统为背景，用清洁生产的思维方式发现和解决采暖过程中热能的浪费。
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