最初的作业计划是在预测的结垢层下方堆放三个WAB进行封隔。
Initially, three WAB's were mobilized with a plan to stack the barriers below the sections where the scale producing formation was thought to be encountered.
据此提出了考虑垢层表面温度变化的描述结垢过程的传热传质模型。
A heat mass transfer model is constructed to take the variation of the scaling layer surface temperature into consideration.
尿素生产中的一段分解加热器列管内的垢层，直接影响到产品的产量、质量和消耗。
Scaling in tube array of heater for first stage decomposition in urea production has a direct bearing on the output and quality of the product and consumption.
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