It is obvious that the amount of background pollination will reflect the size of any local source.

显然外来传粉的数量可以反映当地花粉源的大小。

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The taxes paid by Niebull's wind park are one of the town's main sources of revenue; in smaller settlements they may be almost the only local source.

尼必尔风力电厂纳的税费成了城市主要税收之一，而在一些小地方，风场也许几乎是地方税收的唯一来源。

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If humans are ever going to establish any sort of base on the moon, it'll be a lot easier with a local source of water; the stuff is, after all, awfully heavy to lug all the way from Earth.

如果人类想在月球上建立任何程度的基地，当地有水源的话会容易得多，毕竟从地球运水会重得让你吃不消。

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Mid America Brick provides an independent, local source of bricks for residential and commercial construction in Missouri and surrounding states.

WHITEHOUSE: Laying the Foundation for Economic Success, Brick by Brick

Supporters say the pipeline would create tens of thousands of jobs and potentially lower oil prices in the U.S. because of ensured access to oil supplies from a stable, local source.

FORBES: If U.S. Says No To Canadian Oil Sands Pipeline, China Will Say Yes

They are already hearing some good news - a senior local government source has told the BBC's Mike Sergeant that agreement has been reached between councils and the unions on the "principles" of a deal.

BBC: Public sector pensions - on a knife edge