问答题 翻译:Gas and oil, either as separate fluids or in mixtures, change their state or phase as reservoir pressure changes。
问答题 翻译:The problem consists of being able to predict the variation of pressure with elevation along the length of the flow string for known conditions of flow。
问答题 已知消泡剂与柴油比例为1:9,某一天药罐液位40cm,药罐1cm高度对应体积为20L,消泡剂1桶体积为200L,如何加药?