... arkosic bentonite 长石砂岩质班脱岩 ; beneficiated bentonite 增效膨润土 PEPTIZED BENTONITE 熔融状膨润土 ...
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... 增湿雾化器 humidification spray 增效膨润土 extended bentonite 增斜 increasing hole angle or build-up hole angle ...
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