output input ratios meaning in Chinese

投入产出比

Nowadays , it has become a problem for telecom carriers that though building large scale pstn needs great amount of investment , the income of service provided is still not high , and the output input ratios is low , compared with fellow - traders in developed countries . at the same time , fast - developing market demands have great potential
当前，电信企业现实的问题是尽管固定电话网规模大、投入多，但业务收入水平仍不高，投入产出比相对国外同行业还有较大的差距；同时，市场的需求巨大，具备非常可观的经济潜力，及如何挖掘这种潜力，是电信运营企业面临的重要课题和主要困惑。