Boeing wants to use existing wing and tail control surfaces that shift up and down about 20 degrees in a coordinated fashion to disrupt the vortical flow.

波音公司则利用现成的机翼与机尾控制面，让它们互相协调、上下移动20度，以扰乱涡流。

youdao

Shift up when you reach 30 mph.

车速达到每小时30英里时要换高挡。

youdao

A number of people have taken over a children's climbing set. They've set up sheets and tents and what look like make shift sleeping bags.

VOA: standard.2010.01.14

Of course, with large-scale industrialization, which begins in the middle of the eighteenth century, you'll see this dramatic shift up to the north.

当然,随着大规模的工业化,在十八世纪中期的兴起,你会发现北方的戏剧性转变

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Remember that interest rates rarely shift up in a parallel fashion, so the yield curve will probably flatten, with longer-maturity yields rising by less than one point.

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Alliances, though, will no doubt shift up until the last minute.

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But at some grade level the emphasis needs to shift from shoring up weaknesses to building on strengths.

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