duct system的用法和樣例：
例句
- A duct system carries Bile from the liver to the duodenum and the gallbladder.
肝內有一個膽道系統把膽汁從肝帶到十二指腸和膽囊。 - For multi-plate molds, however, positive ejection of the runner system is not practicable.
可是對於多模板的模具，流道系統的可靠頂出是不可能的。 - There are various failure modes, which could affect a piping system.
目前已知的影響管道系統的有不同的失效方式。 - They produce sperm which may be ejaculated through a system of genital ducts.
產生能通過生殖管道系統射出的精子。
