positrons信息详情
n.[物]正电子，阳电子
deposit slip───n.存款单
accusative preposition───宾格介词
unfilled position───空缺职位
positive signs───n.（数）正号，加号（同plussign）
dominant position───支配地位；优势
brevet position───信息位置
chromite chemical composition───铬矿化学成分
prepositions or adverbs───介词或副词
depositories meaning───受托人含义
transposition cipher───移位密码，错位密码；转置密码
hot and bothered antiprotons and positrons to couple is quite a task.───高温与高速运动状态的反质子和正电子进行结合是一桩非常困难的工作。
The antiprotons are then pushed into the same trap as the positrons and left to mingle for a second or so.───然后将反质子推入到装有正电子的容器中，用大约一秒钟的时间等待它们混合。
The process would also create large numbers of electrons and positrons at the core of the Milky Way.───这个过程也会在银河中心产生大量的电子和反电子。
But the lightning flash detected by Fermi appeared to have produced about 100 trillion positrons: "That's a lot, " he said.───不过，费尔米发现的闪电似乎产生了一百万亿正电子，“那可是个天文数字，”他说。
To make cold antihydrogen, the experimenters must slow down the antiprotons to a temperature similar to that of the positrons.───要制作冷的反氢，实验者必须将反质子减缓到与正子相近的温度。
It needed some years of development by the experimenters before the fact of the existence of positrons was established.───确立存在正电子这个事实还需要几年的实验发展。
If the material being tested has no defects in it, the positrons react a little differently.───如果所探测的材料不存在缺陷，正电子则表现得稍有不同。
In the case of a material with a defect, the positrons are trapped at nano-sized defects in the material.───如果材料有缺陷，这些正电子可以捕捉到纳米尺寸的材料缺陷。
Meanwhile, positrons from the decay of a form of radioactive sodium are separately slowed and accumulated.───同时，来自放射性钠一种形式的衰减正电子被慢慢分开且累积起来。
Positrons and antiprotons can individually be stored in a device called a Penning trap, which uses a combination of magnetic and electric fields to hold charged particles in a vacuum.
For example, a cylindrical Penning trap that holds positrons will not hold antiprotons.
Electrons and protons are forms of ordinary matter, but positrons are antimatter particles.
The positrons are generated will move around in the material.
The Dark Era begins when space is dominated by tiny particles such as photons, electrons and positrons.
Instead they would produce gamma rays, neutrinos and antimatter such as positrons and antiprotons, Gondolo said.