目前使用氧化钙复合的镁基脱硫剂较为合理.It is rational to use complex desulphurization agent for pretreating hot metal.石灰石中氧化钙的理论含量占56%.The theoretical content of CaO in limestone accounts for 56 %.氧化钙较碳酸钙能中和胃酸.Calcium oxide can neutralize ...
It's all part and parcel— just a day's work really you know.这只是一部分——才一天的工作,你要知道。Payment was part and parcel of carrying on insurance business within the UK.赔付是在英国开展保险业务必不可少的一部分。Metaphysics is part and parcel of...