up stream 逆流;在上游
- Continuous processing utilizing PAT systems allows product testing requirements to be moved up stream.
使用PAT系统的连续作业允许产品测试要求在通量之上。 - Both the bears and humans would be found catching salmon as they came up stream to spawn during this era.
在这个时期,熊和人类都捕猎逆流而上来产卵的鲑鱼。 - The only dams built on the Mekong's main channel so far are up stream in China, where it is known as the Lancang river.
迄今为止,在湄公河水系中,只有中国在上游的澜沧江修建了一些水坝。
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