English-Chinese chinese-English pictorial dictionary of chemical technical and equipment English-Chinese/Chinese-English Pictorial Dictionary of Chemical Technical and Equipment English-Chinese/Chinese-English dictionary of coal chemical industry English-Chinese/Chinese-English dictionary of automatic control and instrument English-Chinese/Chinese-English dictionary of chemistry and chemical technology English-chinese chinese-english multi-function dictional of interantional project management English-Chinese & Chinese-English dictionary of statistical terms English-Chinese and Chinese-English dictionary of fine chemical engineering English-Chinese and Chinese-English dictionary of mechanical and electrical engineering English-Chinese/Chinese-English Dictionary of Chemistry and Chemical Technology