increase the number of rotations per minute;

"rev up an engine"

speed up;

"let's rev up production"

The factory decided to rev up production to meet the needs of more customers.

工厂决定增加产量以满足更多客商的需要。

That「s not surprising, Kalin says, because studies with rodents and humans have suggested that both regions rev up during anxiety-provoking situations.

Kalin说，这不奇怪，因为啮齿类动物和人类在面临紧张情况时他们这两个脑部区域活动也会加速。

Here are 12 mistakes you can easily remedy to rev up the romance.

这儿有12个你很有可能会犯得小错误，改正它们让生活浪漫起来。

Stimulants are substances that rev up the nervous system, increasing heart rate, blood pressure, energy, breathing and more.

兴奋剂指的是可以加快神经系统活动，增加心率、血压、精力和呼吸等等的物质。

To rev up this solution even further, heat up the oil in the microwave before applying.

为了让这一方法更快更有效，可以用微波炉将油加热，然后涂抹在头发上。

Try a few to rev up your winter walking.

试一下来加速你的冬天快走吧。

The factory will have to rev up production to stay level with demand.

工厂将不得不增产以满足需求。

The coal mines in North China have to rev up their outputs to meet ever-increasing demand.

华北各煤矿必须提高产量以满足日益增长的需要。

Technological fads have come and gone in schools, and other experiments meant to rev up the educational experience for children raised on video games and YouTube have had mixed results.

时尚科技已经开始进入校园，而且其它重要的实验如电视游戏和YouTube对加速孩子们教育体验的转变已经有了各式的结果。

To rev up sales, Canon is preparing new products with more network-friendly features.

为了加快销售，佳能正準备开发带有更多网络友好特色的新产品。

China has cut taxes, downpayments and mortgage rates, among other steps, to boost housing demand as part of China」s efforts to rev up its slumping economy.

中国政府正在努力扭转经济下行的趋势。政府已采取减税、下调首付和按揭利率等措施，来刺激房地产需求。

Aerobic exercise may not build big muscles, but it can rev up your metabolism in the hours after a workout.

有氧运动虽然不能塑造大肌肉群，但能提高运动后几个小时内的代谢速度。

Fresh from a year analysts expect will be Ford Motor Co. 「s most profitable ever, the automaker plans to hire about 7, 000 people, in part to rev up production of its new C-Max minivan.

新年伊始，分析师就预计，2011年将是福特汽车公司(FordMotorCo .)有史以来获利最丰的一年。今年，这家汽车厂商计划招聘近7,000人，其中部分人手将用于生产新型C - Max小货车。

It turns out that nicotine can rev up brain cells that normally signal people to stop eating when they」re full, researchers report in Friday「s edition of the journal Science.

《科学》杂志在周五刊登了研究者的发现：原来尼古丁能够让大脑细胞加速运转，通常这样会让大脑发出信号，让人们在吃饱的时候不再进食。

But that change could turn out to be short-lived, as the country」s exports rev up .

但这一变化可能最终不会长久，因为中国的出口正在加速增长。

If you rev up your engine too fast, you may damage it.

如果你使发动转速太快，就会把它弄坏的。

And yet I never stopped loving him and using his love like a battery booster whenever I needed to rev up my courage or soothe my sagging spirit.

但是，我对他的爱从未停止过。而他的爱更是我的充电器，在我需要勇气或是意志消沉的时候给我鼓励和安慰。

And Vanderbilt can rev up the tone when he wants to: 「the problem is that if everyone tries to do what they think is the best thing for themselves, the actual travel time for all drivers goes up!」

并且如果Vanderbilt想要这么做的话，他也可以加快语调：「问题是如果每个人都想做对他们自己最有利的事情，那么实际的旅行时间就会上升！」

If you「re already active, perhaps you want to rev up your fitness program to prepare for a 5k race or get ready for a favorite sport.

如果你已经开始健身，可能你是为準备一次5公里比赛或者你喜欢的体育活动提高了你的健身计划。

In the bloodstream, pDCs release chemical messengers called type I interferons that rev up the immune system.

在血液中，pD Cs释放一种被称为I型干扰素的化学信使，使免疫系统加速运行。

And if so, is it possible to rev up your metabolism to burn more calories?

即便如此，加速代谢是否可以消耗更多的卡路里？

Activating this improbable tissue might provide a new way to rev up the body」s metabolism and accelerate weight loss.

激活这种人体组织也许会成为一种新的加快新陈代谢，减肥瘦身的方法。

He said as big cities rev up their marketing to woo travelers, smaller cities may get some of the trickle down tourism.

他说，大城市加大了营销活动来招揽游客；小一些的城市也从中受到了「旅游带动。」