我和15名旅伴很快失望地得知，由于安全原因，舰桥和机械室不能进入。
My 15 tour mates and I soon learned to our disappointment that the bridge and engine room would be off limits because of security concerns.
许多机械室和校园内部变压器等含有多氯联苯的电容器和开关等电气设备的金库。
Numerous mechanical rooms and electrical vaults on campus house transformers and other PCB-containing equipment such as capacitors and switches.
介绍了该厂房生产区、生活服务区及机械室的空调通风与制冷系统的设计及特点。
Presents the air conditioning and ventilating system design and its characteristics for the producing area, living quarter and mechanical room of the workshop.
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