Similarly, at times, some problems may occur in the system even when there has been no check engine light or trouble code signal.

同样地，有时，有些故障可能在系统中已经产生但并没有“检查发动机”灯或故障码信号显示。

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In television, an unwanted component in the picture signal output from a camera, caused by the scattering of light in the optical system.

电视中来自摄象机的图象信号输出中不希望出现的组成部分，它是由光学系统中光散射引起的。

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Pyroelectric detectors depend upon alternating signal, based on which a new kind of laser training system was developed, and the problem of direct light was solved.

热释电探测器为交变信号检测器件，根据这一原理，研制了一种新的激光训练系统，完全解决直射光的问题。

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This new wireless remote system operates from a radio signal rather than infrared light, dramatically increasing functionality and range.

ENGADGET: Nikon D5200 to reach US photographers in late January for $900

In the case of the Argus II, the bionic eye or more accurately, the artificial retina, will turn darkness into light through a system comprised of electronics in the eye and wearable technology which wirelessly transmits a signal to the implant in the eye that lets the patient see again.

FORBES: First Bionic Eye For US Market Awaits Approval From FDA