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单选题
192 系统中用于将高压或低压空气分配到使用系统的那部分。包括管道,活门,作动器,热交换器,控制器等。不包括使用系统的供气活门。
A
The part of a system used to distribute high and low pressure air to the system in use.Includes pipes,valves,actuators,heat distributors,controllers,etc.Excludes use of system supply valves.
B
That portion of the system which is used todistribute high orlow pressure air to using systems. Includes items such as ducts, valves, adtuators, heat exchangers, controls, etc.Does not include the supply valves to the using systems.
C
The part of a system used to distribute highor low pressure air to the system in use.Includes pipes, valves, actuators, heat exchangers, controllers, etc.Includes supply valves that do not use the system.and
答案解析
正确答案：B
