A material balance is based on the law of conservation of matter.

物质平衡是以物质守永恒固定律为基础的.

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The determination ways mainly include material balance algorithm, measurement and experience factor.

确定锅炉房大气污染物的方法主要有物料衡算法 、 实测法和经验系数法.

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Unfortunately, the traditional calculation method of material balance has already been far from meeting the needs.

冶金企业传统的物料平衡计算和分析方法已经远远不能适应时代的要求.

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Material balance equation for gas reservoir is an important method in gas reservoir engineering.

气藏物质平衡方程是气藏工程中的重要方法.

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This makes the prediction, given by the material balance method, a rough one.

本文根据地层实际及天然气在地层中流动的特点, 提出了具有补给区的物质平衡法.

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