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1·Ducts and pipes crisscross.

管道纵横交错。《新英汉大辞典》

2·Pipes and ducts for electricity, water and waste are threaded through each floor module while it is still in the factory.

每个楼层模块仍在工厂里的时候，电力、水和废弃物的管道将他们接通。

3·Please fit the ventilation ducts.

请装上通风管道。

4·Most office buildings have dozens of air ducts and vents.

多数办公楼都有许多的管道和通风口。

5·Calcium deposits (calcifications) in ducts and other tissues.

腺管或其它组织中的钙沉积(钙化)。

6·Vapor or fumes may condense on piping, ducts, or stack walls.

蒸气或尘雾可能在管道，烟道或烟囱壁上冷凝。

7·Maximize insulation, weather strip door openings and seal ducts.

最大化绝缘，密封条，密封门开口管道。

8·Take Falvey and air conditioning and heating ducts, for example.

以福尔维空调和暖气管道，例如。

9·Return air duct section. Single - or double-line ducts can be specified.

回风管道部分。可以指定单线管道或双线管道。

10·Ceiling ducts to direct the air from the blower to the rear of the trailer.

顶部输送管会将空气从风扇吹送到拖车后面。

(1)bile duct胆道，胆管

(1)air duct风道；空气管；导风筒

(1)common bile duct[解]胆总管

(1)duct system管道系统；风管网路

(1)pancreatic duct胰管；胰腺管；霍夫曼氏管

(1)cystic duct胆囊管