If an appliance is intended to be permanently connected to the water mains and not connected by a hose-set, this shall be stated.
对器具永久连接到水源并且不用软管组件连接应进行说明。
A permanently connected heat exchanger for receiving three media and composed of two plate types is intended to be used in a boiler.
一种用于接受三种介质并由两种板型构成的永久相连的热交换器预期用在锅炉上。
One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely watertight and impact resistant unit.
电缆的一端永久性连接在封闭的水银开关内，这个完整的密封总装形成完全不透水、抗撞击装置。
One end of the cable is permanently connected to the enclosed mercury switch and the entire assembly is encapsulated to form a completely watertight and impact resistant unit.
电缆的一端永久性连接在封闭的水银开关内，这个完整的密封总装形成完全不透水、抗撞击装置。
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