Built nearly a century ago to provide power to lumber and paper mills in the town of Port Angeles, these dams blocked access to upstream spawning beds for six species of salmon.
这些大坝建于近一个世纪以前,是为洛杉矶港的木材和造纸厂提供电力的,大坝阻断了6种鲑鱼的上游产卵地。
This stand is an easy one too —as long as you have access to a couple of power tools.
这个也是很容易做出来的--只要你会有电锯之类的工具并且会使用它们。
Many businesses have decided to close, in part because of disrupted supply chains, but also because of the uncertainty over access to power.
现在许多企业都已经决定歇业,尤其是那些供应链中断的企业,另外还有一个原因就是电力供应的不确定性。
You might say, why? Well it turns out there's some trade-offs to it. It has some advantages in terms of power of storing things, it has some disadvantages, primarily in terms of access time.
那可能是某种意义上的权衡,对存储而言,这有优势,但访问的效率上就变成劣势了,幸运的是,python或者。
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