您要查找的是不是：
- patent vitellinc duct 卵黄管未闭
- He got a patent for this invention. 他获得了这项发明的专利权。
- The patent runs out in three years time. 这项专利期限为3年。
- Did you take out a patent on your design? 你是否取得一项设计的专利?
- Carrying down or away. Used of a duct or vessel. 传送的指通过导管或管道传送下来的或输送的
- Infringe a contract; infringe a patent. 违反一项合同; 侵犯专利权
- The patent office needs90 days to wait for any possible opposition. 专利局需要90天的时间等候任何可能产生的反对意见。
- It was patent to everyone that he disliked the idea. 每个人都看得出来他不喜欢这个主意。
- Only when everything is ok will the patent be registered. 只有一切都顺利，才能登记专利。
- The first English patent for a typewriter was issued in1714. 英国第一台打字机专利证书是一七一四年颁发的。
- A duct often contains cross braces. 管道内往往是有支撑拉条。
- The first English patent for a typewriter was issued in 1714. 英国第一台打字机专利证书是一七一四年颁发的。
- A tube or duct for enclosing electric wires or cable. 线管包裹电线或电缆的管子或沟道
- Mary has taken out a patent for a new invention. 玛丽取得了一项新发明的专利权。
- A/C duct and vent duct structure of W/H Deck. 驾驶甲板空调、机械风管结构。
- Maybe you have never heard of duct tape. 也许你还没有听说过管道胶带吧。
- The tie on the cystic duct may slip off. 在胆囊管上的结扎可能滑脱。
- This is a fact patent to the world. 这是全世界都明白的事实。
- Balancing components shall have duct jacket. 弹性补偿元件应有导流套;
- Necessity is the mother of invention, but patent right is the father. 需要是发明之母，但专利权是发明之父。
