The heavy traffic tinctures the air with carbon monoxide.
繁忙的交通使空气里充满一氧。
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.
雷尼镍催剂为原料,制备出合格的酸镍、硝酸镍和氧镍。
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