... chemical sedimentary rock 化学沉积岩 chemical soil type 化学土型 chemical treatment of feed 饲料化学措置赏罚赏罚 ...
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chemical l soil type 化学土型
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Make investigations on main district soil type and its distribution character, obtaining specific and accurate soil section physical and chemical property materials.
调查了研究区土壤主要类型及其分布特征，获得了详实的土壤剖面理化性状资料。
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