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- single duct conduit 单孔管道
- For a typical single duct air system there will be one zone supply air path and one zone return air path. 对于典型的单管空调系统，一般由一条区域送风路径和一条区域回风路径组成。
- States that a single duct VAV air conditioning system has its characteristics in load calculation. 指出单风道变风量空调系统的负荷计算方法和步骤有其自身的特点。
- Air conditioning system is all-air VAV system with inner and peripheral zoning, controlled by constant static pressure point at single duct. 空调风系统为内外分区的全空气变风量系统，变风量系统采用单风道定静压点控制，风机变频，标准层采用环形风道。
- Mammary ductogram of single duct 乳房单管造影摄片
- Mammary galactogram of single duct 乳房单输乳管造影摄片
- The letter was written on a single sheet of paper. 这封信只用一张纸写成。
- multiple duct conduit 多孔管道
- One single, second class, to winchester, please. 买一张去温撤斯特单程二等票。
- He got over the stream with a single leap. 他一跃就跳过了小溪。
- The bridge crosses the river in a single span. 河上那座桥是单跨桥。
- Do you want a single or a return ticket? 你要单程票还是往返票?
- Is the material single width or double width? 这幅料子是单幅的还是双幅的？
- I have had to work for every single penny I earned. 我挣的每一便士都是辛苦工作得来的。
- The huntsman fired a single shot at the lion and settled its hash. 猎人朝那只狮子开了一枪，把它打死了。
- Five twenties and ten single, please. 请给我5张20元的和10张1元的。
- She wore a single orchid on her evening dress. 她在晚礼服上缀着一朵兰花。
- Up to yesterday, I thought he was single. 直到昨天，我一直以为他是独身。
- Can you let me have a room with two single bed? 可以给我一间两张单人床的房间吗？
- One of four offspring born in a single birth. 四胞胎之一一胎出生的四个孩子中的一个
