Zinc dialkyl dithiophosphate ( ZDDP ) is disintegrated with wet method. S, P, Zn is determinated.用湿法分解二烷基二硫代磷酸锌盐 ( ZDDP ) 样品,同时测定硫 、 磷 、 锌的含量.Recovery of cobalt from Co - Ni residue in zinc hydrometallurgy has been studi...
He was involved in oil, zinc and lead prospecting.他参与了石油、锌和铅的勘探。Brass is an alloy of copper and zinc.黄铜是铜锌合金。the fusion of copper and zinc to produce brass铜与锌熔合成黄铜...