专利使用费让这位发明家得以再次立足于商界。The royalties enabled the inventor to re-establish himself in business.试试这一种新的专利药品吧.Try some of this new patent medicine.这项专利期限为三年.The patent runs out in three years'time....
We had a lot of trouble levering the roots out.我们在撬树根时遇到了很多麻烦.The worker is levering at the rock.工人用杠杆移动岩石.The workers were levering huge rock.工人们正在用杠杆撬一块巨石....
Such as grain sheet rubber, it play the role of derrick and inflaming retarding.如有纹理的橡胶片, 这种材料可起到防滑、阻燃等功能.The hoisting capacity of that gin pole ( girder pole, guy derrick ) is sixty tons.那个起重抱杆 ( 格状抱杆 、 转盘抱杆 ) 的起重能力为60吨...