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After one hour minimum, brush surface with sodium bicarbonate solution until all reaction ceases.
至少一小时后,在表面上刷碳酸氢钠溶液直到所有的反应都终止。
youdao
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After one hour minimum, brush surface with sodium bicarbonate solution until all reaction ceases.
至少一小时后,在表面上刷碳酸氢钠溶液直到所有的反应都终止。
youdao