n.碳化
動詞char的現(xiàn)在分詞形式.
The sodium silicate makes the cork stick to the mold surface and also helps to withstand the charring action of the molten lead alloy. 硅酸鈉能使軟木粉粘結(jié)在模具表面，而且還有助于軟木粉耐受熔融鉛合金的碳化作用。
