| 1. | The falls upstream are full of salmon .
该瀑布上流有许多大麻哈鱼。 |
| 2. | Seawater invades for a distance of about 50 miles upstream .
海水浸入上游远至50英里。 |
| 3. | The fish were madly pushing their way upstream to spawn .
鱼群为产卵而疯狂地向上游挤进。 |
| 4. | The explorers paddled their canoe cautiously upstream .
探险者们谨慎地把独木舟向上游划去。 |
| 5. | 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。 |
| 6. | 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。 |
| 7. | 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。 |
| 8. | The salt water, being more dense, flows upstream under the fresh water which is flowing downstream .
淡水在上层向下流动，比重更大的盐水在下层逆流向上。 |
| 9. | It was his father's shell, the oars going in a fierce, even rhythm, biting the water, going upstream .
那是他父亲的小船，划桨的节奏匀称有力，吃水很深，正在往上游划。 |
| 10. | As the velocity in the nozzle throat is sonic, the effect must be transmitted upstream through the boundary layer .
当喷管喉部达到音速时，这种影响一定是通过附面层向上传播而引起的。 |
