abbr. Porto (Italian, Portuguese, Spanish=port) （意大利語，葡萄牙語...
[例句]And in april , pto guangzhou and the state intellectual property office jointly organized a program on patent filing and enforcement in shenzhen.
今年4月，美國專利商標局廣州辦事處和中國國家知識產權局在深圳聯合開展了關於專利申請與執法的項目。