a more sustainable rate meaning in English

可持续发展的水平上

So a modest weakening in external demand might be just enough to stop the economy overheating and curb inflation , allowing vietnam ' s remarkable run of growth to continue at a more sustainable rate
因此外部需求的小幅减弱也许就足以为其过热的经济降温同时纠正通货膨胀，从而使越南引人瞩目的经济增速继续维持在一个可承受的水平。
Inflation measured by retail price index declined from the peak of 21 . 7 percent in 1994 to 0 . 8 percent in 1997 and remained subdued in the following years while real gdp growth moderated gradully from 13 . 5 percent in 1993 to a more sustainable rate
由零售物价指数来衡量的通货膨胀率从1994年21 . 7 %的高点下落到1997年的0 . 8 % ，并且在后来的几年中一直被控制在一个较低的水平上，而国内生产总值实际增长率也从1993年的13 . 5 %逐渐回落到可持续发展的水平上。