Various types of ends are used to attach the extension spring to the source of the force.

不同类型的终端装在拉伸弹簧上提供拉力。

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In particular it optimizes the parameters of the extension spring that is a crucial part in such a flexible infinitely variable-diameter system.

特别是对超声检测柔性无级变径系统的重要部件拉伸弹簧进行了参数优化，对超声变径检测装置的设计具有重要指导意义。

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All coils are active in an extension spring, and it is the initial that holds the coils together tightly. Designs are limitless and may be created to fit your particular application.

拉伸弹簧所有线圈都是活跃的，外观设计多种多样，并可以按照您特定的应用来制造。

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The Wednesday-night series joins ABC's freshman aliens-next-door comedy "The Neighbors" in getting an extension into spring, and returning drama "Scandal" receiving a full ride.

CNN: 'Nashville' gets full season, yee-haw

They believe the runway extension could be in use by spring 2014.

BBC: Birmingham Airport runway extension work starts

It warns, however, that values may have merely received a boost from the spring season (home values typically have their best stretch as the weather warms) and the extension of the first-time-buyer tax credit that expired last month.

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