问题 问答题 简答题

计算题:某一炉钢坯重量为50t,轧成成品后成材率为96%,轧制过程中轧废为0.5t,切头及精整工序金属损耗0.45t,二次氧化损失为0.05t,求烧损量?(其它损耗不计)

答案

参考答案:

成材率=(原料重量-各种金属损耗)/原料重量

各种金属损耗=原料重量-原料重量×成品率

各种金属损耗=50-96%×50=2t

则烧损量=2-0.5-0.45-0.05=1t

烧损量为1t。

填空题

根据课文内容,解释下面句子的意思。

1.  使弈秋诲二人弈,其一人专心致志,惟弈秋之为听;一人虽听之,一心以为有鸿鹄将至,思援弓缴而射之。

                                                                                                                                                          

                                                                                                                                                          

2. 一儿日:“日初出沧沧凉凉,及其日中如探汤,此不为近者热而远者凉乎?”

                                                                                                                                                          

                                                                                                                                                           

3.一儿曰:“我以日始出时去人近,而日中时远也。”

                                                                                                                                                           

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