In water-in-oil emulsions, water is dispersed in oil, which is the external phase.

在相态乳剂、水分散在油，这是外部的阶段。

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In order to study the fuel saving effect of water-in-oil emulsion on this engine, experiments using ultrasonic water-in-oil emulsions were carried out on a single cylinder diesel of this type.

为了探索油包水型乳化油在该机上的节油效果，曾在该型单缸机上进行了一系列超声油包水型乳化油试验。

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In order to study the fuel saving effect of water-in-oil emulsion on this engine, experiments using ultrasonic water-in-oil emulsions were carried out on a single cylinder diesel of this type.

为了探索油包水型乳化油在该机上的节油效果，曾在该型单缸机上进行了一系列超声油包水型乳化油试验。

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