Most of the energy is lost through heat loss through the reactor's wall or through the re-radiation of sunlight back through the device's aperture.

而大多的能量都通过反应器壁的热耗散，或者通过装置开孔的太阳光再发散损失掉了。

youdao

If Keck can see back in time, imagine what the biggest telescope in the world, the Great Canary telescope, can pick up with its chart-topping aperture.

如果说凯克能回溯时光，世界上最大的望远镜——大加纳利望远镜拥有最为强大的物镜，又具有什么样的能力呢？

youdao

The beam then arcs circumferential ly back to a negatively charged high energy flux aperture.

然后光束沿着四周成弧状折回一个充满负电的主能量通行孔径。

youdao

But Tim had clearly been obsessed with the idea of taking home his own piece of Aperture Science since the MakerBot team first showed us one back at CES. The one we saw back then was roughly the size of a soccer ball, but we figured we'd start with something a bit more modest at one inch cubed.

ENGADGET: MakerBot Replicator impressions: the dawning of 3D printers in every home?

Its newly designed, large-aperture, 4x optical zoom lens (with the maximum aperture of F2.0 at wide-angle end), high-sensitivity, back-illuminated 16 megapixel CMOS image sensor, and sensor-shift Shake Reduction system ensure sharp, high-quality, low-noise images.

ENGADGET: Pentax expands ruggedized series with Optio WG-3, Target-exclusive WG-10