So to prevent overproduction, the upstream doesn't "push" finished parts to the downstream, but instead it is the downstream that actively pulls (fetches) the parts from the upstream.

为了避免生产过剩，上游工序不是将成品零部件“推”给下游工序，反而是下游工序主动地从上游工序中拉出(拿)零部件。

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They wanted to push research on fear one step further – from understanding how we passively react to fear, through actively avoiding it, to actually confronting it.

这两位科学家希望将关于恐惧的研究推进一步：从了解人们如何被动地对恐惧做出反应，到通过积极规避而实际面对恐惧。

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Instead of trying to control every aspect of specification (requirements and design), it is better for the leadership group to actively push specification activities into lower project levels.

与控制每个细节(需求和设计)方面相比，领导组把具体的活动放到稍低的层次显得更加合理。

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Gennum has stepped in with its ActiveConnect DisplayPort solution, which embeds a small semiconductor within a DisplayPort cable to actively push signals up to 30-meters (around 100-feet) without the need for a costly, cumbersome extender box.

ENGADGET: Gennum develops in-wire technology for 100-foot DisplayPort cables

South and North Korea are to actively push for humanitarian cooperation and expansion of the reunions of separated families.

CNN: Korea accord's eight points

Ms. Risner, who has sold Avon since October 2006, actively uses Twitter to push products to her nearly 500 followers.

WSJ: Avon Works to Catch Up on Social Media