通常买滥发电邮含镉以百万计的电子邮件地址但他们不知道这些地址是多少活跃。
Spammers typically buy a CD containing a million or so email addresses, but they have no idea how many of those addresses are active.
含碱性或其他非酸性电解质的蓄电池和蓄电池组。部分气体复合的镍镉柱状二次单电池。
Secondary cells and batteries containing alkaline or other non-acid electrolytes - Nickel-cadmium prismatic secondary single cells with partial gas recombination.
法规对含磷肥料中的镉含量进行了严格的限制。
The Regulation introduces strict limits for cadmium in phosphate fertilisers.
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