Specify required extension length from centerline of valve to handwheel.

注明从阀门中心到手轮的所需加长件的长度。

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To order, specify description and extension length from center line of valve to handwheel.

订购时，注明描述信息和从阀门中心线至手轮的加长长度尺寸。

youdao

To order, specify description and extension length from center line of valve to top of handwheel or nut.

订购时，注明描述信息和从阀门中心线至手轮顶部或螺母的加长长度尺寸。

youdao

The University of Illinois Extension service says you should harvest beans when the pods are firm and have reached their full length.

VOA: special.2009.03.24

The cam also has a focal length extension factor of 1.33, which helps to mitigate the problem of "vignetting, " or a fall-off in brightness that would occur without the extension factor.

ENGADGET: Leica M8 combines old-world charm with new-world tech