;
;
;The heavy traffic tinctures the air with carbon monoxide.
繁忙的交通使空气里充满一氧
。
]一氧
The heavy traffic tinctures the air with carbon monoxide.
繁忙的交通使空气里充满一氧。
Qualified nickelous, sulfate, nickelous nitrate and nikel monoxide were prepared with waste raney nickel catalyst as raw material.
以废雷尼镍催剂为原料，制备出合格的硫酸镍、硝酸镍和氧镍。
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false
