上游

• The bird flapped ( its way ) up the stream ...
  那只鸟鼓翼向河的上游飞去。
• Seawater invades for a distance of about 50 miles upstream .
  海水浸入上游远至50英里。
• One can always aim higher .
  上游无止境。
• I could see suspicious ripples at the upper end of the reach .
  在那段河道的上游，我能看到令人生疑的小湍流。
• These constitute the upstream and downstream faces of the porous domain .
  这些是由多孔区的上游面和下游面组成。
• Straightening vanes are effective in reducing the upstream pipe-length requirement .
  矫直的叶片对于减少上游直管的要求长度是有效的。
• Neither the upper bend of the don, nor the crucial land bridge, had been secured .
  上游的顿河河曲和关系重大的陆口桥梁此时都未到手。
• In the upper reach the bed was dune covered and in the lower reach it was flat .
  上游河段的床面为沙垄所覆盖，而下游河段则为平整床面。
• When the downstream head is greater than about 3/5 of the upstream head, flow is submerged .
  当下游压头大于上游压头约35时，流量是潜流。
• In the evenings they forsook the crowded haunts of the gay of excursions on the water .
  天天傍晚，他们远避熙来攘往的快乐人群，去河上游览。