It is believed that in the design of the drive spring, it is necessary not only to use the usual static calculations but also to analyse the dynamic stress so as to obtain rational dimensions.

作者建议在设计复进簧时，不仅运用传统的静载计算，还要进行动态应力分析，以便获得较合理的尺寸。

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Our relatives are kind of jealous of us when we drive to visit them during Spring Festival.

春节期间我们开车串亲戚时他们都嫉妒我们。

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There are a number of ways to drive resource updates under transactional control in Spring, including both programmatic and declarative forms.

在Spring中，有许多方法可以驱动事务控制下的资源更新，这包括编程形式和声明形式。

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This torch works by storing energy in a hand-wound spring, and then using that energy to drive a dynamo.

ECONOMIST: Taking the heat out of gynaecological examinations

With total production amounting to a five-figure number, from the spring of 2012 the further developed smart fortwo electric drive will start winning wide-ranging buyers in more than 30 countries for an innovative and forward-looking drive concept.

ENGADGET: Third generation Smart Fortwo ditches Tesla powertrain, gains two wheeled cousin

It would offer creative leasing, letting you drive a Chevy Corvette during the summer, a Cadillac Seville STS during the fall and spring and a GMC Yukon during the winter.

FORBES: Digital rules