Through orthogonal experiment, parameter of back zone draft multiple, roller center distance and roving twist factor are selected.

并通过正交试验对后区牵伸倍数、罗拉中心距和粗纱捻系数进行了优选。

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Using a BlackBerry or a similar device is a way to set reminders that brings you back into the "now" time zone.

用一个黑莓或者差不多的装置定时叫醒是将你带回“现在”这个时区的一种办法。

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We have teamed up with a search and rescue team from Spain and will be transporting them deep into the quake zone and back again tomorrow evening.

我们和一支西班牙搜救小组组成一队，要把他们送到灾区中心，明晚再回来。

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He says it isn't always easy to make the transition from a war zone back to his day job.

NPR: Dodging Bullets to Vote in Haiti's Cite Soleil

So far, there is little sign that these rate increases are holding the euro zone back, but eventually they will have an effect.

ECONOMIST: Don't get your hopes up too high about growth in the euro area

Top seed and world number one Lindsay Davenport is on Court Four wacking balls left, right and centre as she bids to get back in the zone before resuming her rain-affected semi-final tussle with the number three seed Amelie Mauresmo.

BBC: SPORT | Tennis | Wimbledon blog