方向别疏解 untwine of direction

[名词解释] 列车别疏解 untwine of train

[名词解释] 线路别疏解 untwine of main line

[名词解释] 对外贸易的地理方向（Direction of Foreign Trade）

[判断题] 定向双极化天线（direction alantenna）一种在空间特定方向上在两个极化方向上具有比其它方向上能更有效地发射或接收电磁波强度的天线。A . 正确B . 错误

[单选题]D．irection: Pick out the appropriate expression from the eight choices and complete the following dialogue by blackening the corresponding letter on the answer sheet.A． What happened?B． Nice to meet you.C． please take it easy.D． No trouble at all.E．

[单选题]D．F．ind Which Direction Is SouthD．o you have a good sense of direction? If not, please take with you a compass. But if you forget to take a compass, you can still find your way.It’s never a good idea to imagine that the family member who was entruste

[判断题] 疏解泵是齿盘式高频疏解机的别称。A . 正确B . 错误

[单选题]以下层别按分类方向，正确的是（）。A . 按人员B . 按机器C . 按方法D . 以上全是

[名词解释] 单向编组站 single direction marshalling station

[名词解释] 双向编组站 double direction marshalling station