However the researchers can? T be absolutely sure that the two signals they measured were dark matter and not some other particle, which they call background.
但研究者们还是不能绝对确信他们所测到的两个信号跟暗物质有关,因为有可能是背景的其他粒子干扰所致。
The activity, olefin selectivity and thermal stability of F -T catalyst can be improved by using ultrafine particle with a suitable promoter.
利用超细粒子并选用适当的助剂提高了F-T过程的反应活性,选择性和热稳定性。
With the geometric information in combination with null-field, T-matrix of arbitrary- shaped particle can be found.
将几何信息导入零场方程得到任意粒子的散射的T矩阵。
You want to get the contract for Johnny Fontaine, you don't tell your consiglieri, "Hey Tom, put a point particle on Jack's bed."
约翰尼·方丹为电影《教父》中的角色,影片中有杀马恐吓的情节
So, you cross link all the proteins in the virus, and you make a particle that looks like a virus but it can't act like a virus any longer because it can't replicate.
当病毒中所有的蛋白质交联后,就得到了一种看上去像病毒,却无法致病的病毒,因为这种病毒不能进行复制
I will draw the famous picture of some particle moving and it's here at t of some value of x.
我会画某个质点运动的,经典图像,这是某个x值对应的时间t
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