derv
- n.柴油（重型车辆用）
derv-
The industry consider that derv has been too expensive .
工业界认为柴油太贵了。
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Through coal direct or indirect liquefaction is changed into benzine , derv , to can lasting of our country development has important strategic sense .
通过将煤直接或间接液化转化成汽油、柴油，对我国的可持续发展具有重要的战略意义。
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It is a dispersion system of two phases , which applied a good multi-functional emulsion agent into crosslinked HPG solution , using the emulsion technique of D phase ( kerosene or derv ) .
它是通过采用复合乳化剂，应用D相乳化法，将油相以体积比为50∶50的比例分散于交联的HPG溶液相中得到的一种多相分散体系。