The heat transfer between residential units is a difficult technical problem in heat metering of central heating systems.
户间传热是集中供暖热计量中的一个技术难题。
An analysis is made of the problem that the metering error is substantial in custody transfer metering of crude oil with low water content.
分析了原油交换计量过程中存在低含水状态下计量误差较大的问题。
This technique has solved a key problem in measuring the output of viscous oil Wells, for it can decrease metering errors, reduce operators 'labour intensity, and lessen environmental poll...
解决了稠油油井产量计量存在的关键技术问题，减少了计量误差，减轻了操作人员的劳动强度，减轻了环境污染。
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