Stable size and good filter efficiency of the bituminous.尺寸稳定,沥青浸渍性好.As a result, the reduction efficiency of charcoal, anthracitic and bituminous are better than pulverized coke.结果表明:木炭 、 无烟煤、烟煤作为还原剂还原效果明显优于焦粉.The ichth...
Three mortar shells had landed close to a crowd of people.3枚迫击炮弹落在人群旁。As an investment, bricks and mortar are not what they were.作为一种投资，房产不再是从前意义上的房产。The 120mm mortar has a range of 18,000 yards.口径为120毫米的迫击炮的射程是1.8万码。...