For this purpose, the actuator (17) surrounds the channel section (3).

为此目的，手柄(17)围绕通道部分(3)。

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The area calculating formulas of burning surface and channel section have been derived by the grain geometry.

根据装药几何形状，导出了在火箭发动机工作过程中燃烧面积及通道截面积变化规律的计算公式。

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Emitter performance depends on its own characteristics which include channel form, channel section area, channel section form and channel length.

灌水器的性能取决于灌水器本身的结构参数，主要包括流道形式、流道断面面积、流道断面形式及流道长度。

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We absolutely wanted a new Home page as part of the Channel and Section launch.

FORBES: The new Forbes.com: What's in it for you?

The full-featured controller combines a four-channel mixer section with ergonomically laid-out high-quality control elements and an integrated audio interface, all designed to professional specifications.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter

In fact, last Monday we launched a new home page and new channel and section pages as part of our iterative approach to rebuilding Forbes.com.

FORBES: Connect