关于retarder的百科

• retarder造句怎么写

• 1、retarderpasteurization2、retardercontrol3、weightproportionalretarder4、manuallycontrolledretarderoperation5、anobstructor;aretarder6、Photoelectriccharacteristicsofliquidcrystalvariableretarder7、ComparisonoftreatmenteffectbetweenBelenilretardera...
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• cement retarder造句怎么写

• 1、Thepaperstudiesontheprincipaltechnologiesoncoaldesulfurizationandretardantmechanismofcementretarderandactivemechanismofcementmixedmaterial.2、ThepaperintroducesthefieldperformanceofanewkindofoilwellcementretarderQR-300C,anditsapplicationinproducti...
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