要保证良好的排风效果，建议要在结合建筑功能要求下由专业通风设计人员对排风道进行详细的设计计算。
It is suggested that the design should be calculated by the professional venting designer in details based on the requirements of the architecture functions to insure the good venting effect.
中空区设计要保证自然光照射和所有空间通风良好。
This empty space is designed to allow natural lighting and ventilation of all rooms despite the compactness of the house.
电动机的安装应保证其良好的通风冷却条件。
The setting of motor should guarantee good airing condition of motor.
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