The main connections between the plant and the rest of the site (i. e. feedstock, product, and utilities) require reinstatement as do the boiler feed water and cooling water chemical dosing systems.
甲醇装置和现场其他装置(如，原料，产品，和公用工程)如和锅炉给水和冷却水化工原料系统的主要连接需检修完好。
Recommends that the chemical dosing treatment is preferred for large and medium air conditioning systems.
建议对于大中型集中空调系统优先选用化学加药水处理方式。
Recommends that the chemical dosing treatment is preferred for large and medium air conditioning systems.
建议对于大中型集中空调系统优先选用化学加药水处理方式。
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