The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀反应制备七锌和五铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫的研究中发现淡和合适浓度的福尔林、铜和盐霉素钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由铜、亚锡、络合、稳组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌五水硫酸铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫的研究中发现淡水浓度的福尔林、硫酸铜钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

高温煅烧后闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫研究中发现淡水和合适浓度福尔林、硫酸和盐霉素钠是比较好防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸、硫酸亚、络合剂、稳定剂等组成溶液中,可以置换镀覆不同质量分数- 合金镀层,其工艺可替代氰化物预镀,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防刺激隐研究中发现淡水和合适浓度福尔林、硫酸铜和盐霉素钠是比较好防法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成溶液中,可以置换镀覆不同锡质量分数铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后闪锌矿石与稀反应制备七水锌和五水铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫研究中发现淡水和合适浓度、铜和盐霉素钠是比较好防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由铜、亚锡、络合剂、稳定剂等组成溶液中,可以置换镀覆不同锡质量分数铜- 锡合金镀层,其工艺可替代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌稀硫酸反应制备七水硫酸锌和五水硫酸铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫的研究中发现淡水和合适浓度的福尔林、硫酸铜和盐霉素钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以覆不同锡质量分数的铜- 锡合金层,其工艺可替代氰化物预铜,消除氰化物污染,是实现电清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀硫反应制备七水硫锌和五水硫。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫的研究中发现淡水和合适浓度的福尔林、硫和盐霉素钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫、硫亚锡、络合剂、稳定剂等组成的溶液中,可以置换覆不同锡质量分数的- 锡合金层,其工艺可替代氰化物,消除氰化物污染,是实现电清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药物防治刺激隐核虫的研究中发现淡水和合适浓度的福尔林、硫酸铜和盐霉素钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工代氰化物预镀铜,消除氰化物污染,是实现电镀清洁生产措施之一。

The preparation of zinc sulfate heptahydrate and copper sulfate pentahydrate from calcined zincblende was investigated.

用经高温煅烧后的闪锌矿石与稀硫酸反应制备七水硫酸锌和五水硫酸铜。

Freshwater and suitable concentration of formalin, copper sulfate and sodium salinomycin were the better way to prevent and cure Cryptocaryoniosis.

在药防治刺激隐核虫的研究中发现淡水和合适浓度的福尔林、硫酸铜和盐霉素钠是比较好的防治办法。

Cu-Sn alloy coating with different Sn content can be replacement plating out on iron and steel surface in a solution comprising of copper sulfate, stanous sulfate, complexant and stabilization agent.

铁件在由硫酸铜、硫酸亚锡、络合剂、稳定剂等组成的溶液中,可以置换镀覆不同锡质量分数的铜- 锡合金镀层,其工艺可替代氰化预镀铜,消除氰化,是实现电镀清洁生产措施之一。