您要查找的是不是：
- 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?
- He was busy leveling the ground and laying turves. 他正忙于平整土地铺草皮。
- I'd like a room on the upper level. 我想要楼上的房间。
- We need a mechanical digger to level the ground. 我们需要一台挖掘机来平整土地。
- I hope you'll be on the level with me. 我希望你对我坦率布公。
- She needs to win this point to level the score. 她要赢得这一分才能将比分扳平。
- Infringe a contract; infringe a patent. 违反一项合同; 侵犯专利权
- Keep a level head and phone the Fire Department. 保持冷静，打电话给消防署。
- 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。
- A football field should be level. 足球场地应该平坦。
- The rising level of crime is a sign of the times. 犯罪率增高是这一时代的特徵。
- 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。
- I have told the whole story on the level. 我已经诚实地把整个事情经过讲出来了。
- Find level ground for the picnic table. 找一处平坦的地面放野餐的餐桌。
- 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。
- This mountain is 1,400 meters above sea level. 这座山海拔1,400米。
- He has a level head in emergencies. 他在危急关头能镇定自若。
