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词组 ratio
释义
ratio /ˈreɪʃiəʊ $ ˈreɪʃoʊ/ noun the relationship between two amounts or numbersadjectivesa high ratio The college has a high ratio of teachers to students.a low ratio A low teacher-to-student ratio is better for the students. | Somalia has a low ratio of exports to imports when compared with many other East African countries.an inverse ratio (=one thing increases while another decreases) They found an inverse ratio between the number of different animals and their size.the optimum ratio (=the best one) According to her diet plan, the optimum ratio is one part of protein to seven parts of carbohydrate.nouns + ratiothe male-to-female ratio also the sex ratio (=between males and females) The male-to-female ratio is 100:115.the staff-to-student ratio/the staffing ratio The staff-to-student ratio at the college is approximately 1:10.the cost benefit ratio (=a comparison of the value of something against its cost) They calculated the cost benefit ratio to see if the project would make economic sense.the survival ratio (=the number that survive) For some cancers, the survival ratio has gone up considerably.verbs + ratiocalculate the ratio How do you calculate the ratio between two numbers?increase/decrease the ratio Telecommunication systems try to increase the ratio of signal level to noise level in order to effectively transmit data. | The purpose of this reorganization is to decrease the ratio of students to teaching staff in the college.ratio + verbsthe ratio increases The ratio of females to males studying engineering is slowly increasing.the ratio decreases/falls/drops The ratio of managers to workers has decreased in recent years.prepositionsthe ratio between sth To calculate the ratio between two numbers we need to divide them by each other.the ratio of sth to sth The ratio of nursing staff to doctors is 2:1.
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更新时间:2025/1/15 23:43:39