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- Salt is a common food preservative. 盐是一种常用的食物防腐剂。
- The scientist patented her invention. 这位科学家得到她的发明的专利权。
- Salt has a preservative effect on food. 盐对食物有防腐作用。
- He painted the posts with a preservative liquid. 他在柱子上涂上了起保护作用的液体。
- 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 kept his invention under cover until it was patented. 在取得专利权以前，他的发明一直秘而不宣。
- Salt is a preservative for meat. 盐是肉类的防腐剂。
- 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。
- Preservative is usually added to tinned meat. 防腐剂通常加在肉类罐头里.
- 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。
- Food Packing: No Preservative Added. 食品包装：保证不添加防腐剂。
- Mary has taken out a patent for a new invention. 玛丽取得了一项新发明的专利权。
- Salt is savory, purifying, preservative. 盐是有味道的，能除污，能防腐。
- A preservative agent or principle. 防腐剂有助于保存的药剂或成分
