某锌锅的锌锭熔化率为2.5t/h，请问熔解1t锌锭所需时间？

要保持锌液中铝含量，锌锭中铝含量应（）锌锅中铝含量。 一块锌锭长1.5米，宽0.4米，高0.25米（锌的比重为7.19kg/dm37.19kg/dm3=7.19t/m3），求这块锌锭重量 一块锌锭长1.5米，宽0.4米，高0.25米（锌的比重为7.19kg/dm3 7.19kg/dm3=7.19t/m3），求这块锌锭重量？ 一块锌锭长1.5米，宽0.4米，高0.25米（锌的比重为7.19kg/dm³ 7.19kg/dm³=7.19t/m³），求这块锌锭重量？ . Chaucer died on October 25th, 1400, and was buried in ____. I was born _______ the morning _______ February 25th, 1997. [ ] 锌合金压铸时，当手动给熔炉添加锌锭时，如果添加的锌锭还有水汽和油污等，容易导致压铸的坯件的什么缺陷（） We are prepared to keep the offer open _______ 25th this month. Christmas is a holiday usually celebrated on December 25th _____ the birth of Jesus Christ[ ] The teacher told us yesterday that December 25th __________ Christmas Day. Christmas is a holiday usually celebrated on December 25th, _____the birth of Jesus Christ.[ ] Christmas is a Christian holy day celebrated on December 25th _____ the birth of Jesus Christ（） Michael Jackson _______ as “King of pop” was announced dead on June 25th, _____the whole world. Christmas is a Christian holy day usually celebrated on December 25th ____ the birth of Jesus Christ 某锌加工商于7月与客户签订了一份3个月后交货的合同。生产该批产品共需原料锌锭500吨，当前锌锭的价格为19800元/吨。为了防止锌锭价格在3个月后上涨，决定利用期货市场进行套期保值。该制造商开仓买入11月份锌期货合约100手，成交价格为19950元/吨。到了10月中旬，现货价格涨至20550元/吨。该制造商按照该价格购入锌锭，同时在期货市场以20650元/吨的价格将锌期货合约全部平仓。以下对套期保值效果的叙述正确的是（）。 某锌加工商于7月与客户签订了一份3个月后交货的合同。生产该批产品共需原料锌锭500吨，当前锌锭的价格为19800元/吨。为了防止锌锭价格在3个月后上涨，决定利用期货市场进行套期保值。该制造商开仓买入11月份锌期货合约100手，成交价格为19950元/吨。到了10月中旬，现货价格涨至20550元/吨。该制造商按照该价格购入锌锭，同时在期货市场以20650元/吨的价格将锌期货合约全部平仓。以下对套期保值效果的叙述正确的是（　　）。 People began to celebrate Dec. 25th long before the birth of Jesus.____ The last line added was Jubilee Line, was opened in honor of the 25th anniversary of Elizabeth ___the queen. It was on September 25th ______ China’s first aircraft carrier, named “Liaoning”, was handed over to PLA Navy. A strong earthquake hit Nepal (尼泊尔)___25th, April ,2015.Thousands of people lost their lives.