According to the different weights of effectiveness, justice and sustains in principal level, 7 schemes are proposed to probe into the water amount allocation.

根据准则层中有效性、公平性和可持续性权重的不同取值，给出了7种水量分配计算方案。

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If the price level rises, your principal rises as well.

如果价格上涨，你的本金也会上涨。

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At the international level, the principal treaty bodies - the Conference of the Parties and the permanent Secretariat - are established and fully functional.

在国际层面上，主要的条约机构——缔约方会议和常设秘书处，得以建立和全面运转。

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The default rate by principal amount stayed level at 5.9% at the end of April while the default rate by issuer count fell to 7.1% at the end April from at 7.2% at the end of March.

FORBES: May 2013 European Leveraged Loan Market Analysis

"To help support the economic recovery in a context of price stability, the Committee will keep constant the Federal Reserve's holdings of securities at their current level by reinvesting principal payments from agency debt and agency mortgage-backed securities in longer-term Treasury securities, " the FOMC says, adding it will continue to roll over the Federal Reserve's holdings of Treasury securities as they mature.

FORBES: U.S. Economy

The nice thing about I Bonds is that, unlike market-traded bonds, your principal is absolutely steady--it does not fluctuate with the level of interest rates.

FORBES: Fact and Comment