利用等时段的特征线法数值模拟三峡永久船闸输水系统不补水工况下的输水特性，得出了输水管道沿程各节点水头及流量的变化规律。
The characteristic line method is used to simulate the characteristics of the water conveyance system of the ship lock in the Three-Gorges Project.
通过比较煤焦脱灰前后热重燃烧曲线的特征参数的变化和转化速率的快慢，分析了内在矿物质对煤焦燃烧特性的影响。
The effect of included minerals on char combustion characteristics were analyzed by comparing burning curves and their characteristics indexes of the four chars and their demineralized chars.
如果在地层中含有顺磁性物质，则地层的核磁弛豫特性呈现新的变化特征。
The nuclear magnetic relaxation characteristics of formations will change if there are paramagnetic materials in the formations.
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