In order to satisfy function requirement, its especially important to keep the landscape water quantity balance.

为不影响景观效果，保证景观水体的水量平衡极为重要。

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On the basis of the air mass balance and heat quantity balance of the milling system and air preheater, their operational points can be determined.

基于制粉系统和空气预热器空气质量平衡和热量平衡关系确定制粉系统和空气预热器的工作点。

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It has become the urgent requirement of current land management that Cultivated land requisition-compensation balance from quantity balance to quantity-quality.

占补平衡实现由数量平衡向数量-质量平衡管理的升级，已成为当前土地管理的迫切要求。

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However, they need to carefully balance the quality and quantity split of their content between streaming and pay-TV channels to avoid conflict and cannibalization.

FORBES: The Drivers Behind Media Stocks Big Run This Year

Macroeconomists must constantly balance the relevance of their data with the quantity of it.

WSJ: Spreadsheet Slips Not Economists' Only Problem

Our consistent policy has been to seek to balance these two elements in a way that increases both the quantity and quality of our cooperation with China as well as our ability to compete.

WHITEHOUSE: The White House