The Freezing Unit and the Decolouring Unit are introduced into the process to control the color grade of the BA solution and the quality of the product.
采用冷冻和活性炭脱色工艺来控制水洗BA色级，减少BA液中有机杂酸和高分子蛋白的含量以保证最终产品的质量；
Refrigerator: a commercial refrigerated unit or even domestic 'fridge is ideal if set at a very low temperature yet above freezing point.
冰箱：商业冷藏设备，甚至国内'冰箱是理想的，如果定在一个非常低的温度点尚未冰点以上。
The heater's job is to prevent hydrazine fuel in a feed pipe to a unit from freezing.
加热器的工作是预防装置进料管中的联氨燃料冻结。
This article studies the unit mainly applied in the industrial freezing, also in the middle and small scale central air conditioning.
所研究的机组主要应用于工业冷冻，也可作为中小型中央空调使用。
In order to prevent water or recycling water within the system from freezing, the unit is installed with rake-type flow switch;
为防止缺水或循环水系统内部结冰，机组安装了耙式流量开关；
The concrete precast unit during setting period in winter season, would be most likely damaged by freezing and eventually reduced in strength and durability.
冬季施工的混凝土构件，在硬化过程中有可能遭受冻害。
The south crude distillation unit in Liaohe Petrochemical Company mainly processes high-acid-value, corrosive and low-freezing-point naphthenic crude oils after revamping.
辽河分公司南蒸馏装置改造之后，主要加工高酸值、强腐蚀性的低凝环烷基原油。
The south crude distillation unit in Liaohe Petrochemical Company mainly processes high-acid-value, corrosive and low-freezing-point naphthenic crude oils after revamping.
辽河分公司南蒸馏装置改造之后，主要加工高酸值、强腐蚀性的低凝环烷基原油。
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