Through advanced electronic light control (ELC) function, you can use in indoor applications fixed aperture lens.

通过先进的电子光线控制(elc)的功能，可以在室内应用时使用固定光圈镜头。

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While most conventional airborne radars rely on some form of mechanically scanned antenna to transmit and receive signals, active electronically scanned array (AESA) sensors employ a fixed aperture.

当多数常规机载雷达依靠机械扫描天线收发信号的时候，有源电子扫描阵列(AESA)传感器却使用固定的孔径。

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The main lens is fixed in place; there is no auto-focus, auto-aperture, or other gubbins.

主要镜头是固定的，没有自动对焦和自动光圈以及其他小配件。

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He left it on a fixed aperture, so that as the light faded, the exposure got ever longer.

BBC: Cameras to capture a road trip

In addition to daily use as a "pan-focus" lens featuring a wide angle, fixed f8 aperture and shallow depth of field, it is compatible with manual focusing using a lever and capable of close-up shooting as close as 30 cm.

ENGADGET: Olympus E-PL5 and E-PM2: Micro Four Thirds cameras with OM-D-like focusing, performance boosts (hands-on)

Inmarsat is also entering a new field, the fixed satellite business ("fixed" refers to the customer, not the satellite) and will access very-small-aperture terminals (VSATs) of the type maintained by fixed satellite service purveyors like Intelsat.

FORBES: Down To Earth