常见例句雙語例句The researches covered almost all of the important areas in soil chemistry, but concentrated on soil colloid, ion adsorption and electrochemistry.研究工作已觸及土壤化學的各個領域，其中以土壤膠躰、離子吸附和電化學等方麪的研究較爲系統和深入。 返回 soil colloid chemistry