The optimal burden ratio of sintered chromite is 60-65%.

冶炼中烧结铬矿的搭配比例以60—65%为佳。

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Debt burden ratio: Interest on debt as a percentage of exports.

负债比率：债务利息占出口额的百分比。

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The influence of extraction temperature, static placing time, solvent burden ratio and flocculating agent on separation effect were discussed.

讨论了萃取温度、静置时间、溶剂配比和絮凝剂对分离效果的影响。

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Overall municipal debt is relatively low and debt burden (the ratio of how much is paid on debt service relative to total budget) averages under 5% according to the most recent U.S. Census data.

FORBES: Post-Apocalyptic Municipal Bond Buying Guide

For some within the supply-side community who believe in creative destruction and the natural power of an economy to renew itself, the solution is stable money (which Federal quantitative easing prevents) reducing the regulatory burden and increasing the capital to labor ratio.

FORBES: The Fed's New NAIRU: Evil Enough To Unite Democrats And Republicans

The combination of slow economic growth, a rising debt-to-GDP ratio and a very high ratio of debt to exports make the debt burden unsustainable.

ECONOMIST: Now for round two | The