常見例句Fractured reservoirs were possessed of considerable proportionment in gas-oilresource, but it"s very difficult to empolder. 裂縫性油藏在油氣資源中占有重要的比例，但要有效開發(fā)裂縫性油藏卻十分困難。If you have the idea to invest the project, the cooperation、request and invest proportionment, we can have a further discussion in the future. 如有意向加盟該項目的投資者，合作方式及具體要求，出資比例，雙方商談時另行再定。Keywords polishing fluid;proportionment;concentration;invalidation; 拋光液;組分;濃度;失效; 返回 proportionment