Energetic electrons and positrons (antielectrons) move out from an inner X-ray ring, which marks a shockwave between different forms of matter, to produce an extended X-ray glow.

高能电子和正电子从一个内部的X射线环中向外运动，在不同形式的物质中标记出了一个冲击波，产生了一个膨胀的X射线光。

youdao

Rotating around you, the x-ray tube and electronic x-ray detectors are located opposite each other in a ring, called a gantry.

有个称为龙门的环状物在你周围旋转，环上有若干对X射线管和电子X射线探测器在两侧。

youdao

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径，可以让镍晶体发射，单束X光来，继而得到环状图案，如果电子束，是以粒子束形式出现的。

youdao

There is no way that you could irradiate a crystal of nickel with a single beam of x-rays and get that circular ring pattern if the electron beam were behaving as a particle beam only.

没有什么其他的途径,可以让镍晶体发射,单束X光来,继而得到环状图案,如果电子束,是以粒子束形式出现的。

麻省理工公开课 - 固态化学导论课程节选

Both use a 2.4GHz wireless USB connection, providing you with a 10-foot radius of Ring Mouse action on either OS X or Windows.

ENGADGET

Amongst the updates are a more textured backing for the cover, which should help it stay in small hands and some more subtle choices, like the inclusion of tiny X's, corresponding to the O ring at top, in keeping with the product name.

ENGADGET: blogger-avatar

Specifically designed to take advantage of the camera's mirrorless design, the X-Mount has a short flange back distance of just 17.7mm made possible by designing the mount ring as thin as 2.5mm.

ENGADGET: Fujifilm grows X-series mirrorless lineup with 16.3-megapixel X-E1