So we're dealing here with the center-of-mass frame, and now I'm going back to the laboratory frame.

我们解决的是，质量重心体系，我们现在要回到实验组。

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Using Lorentz transformation, a momentum vectors diagram of the emitted particle in laboratory frame and center-of-momentum frame is given in relativistic two-body reaction.

利用洛伦兹变换，画出了相对论下二体反应实验室系和动心系出射粒子动量的关系图，并利用关系图，对不同情况下的出射粒子能量分布作了讨论。

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The threshold energy formula of nuclear reaction in which energy is absorbed is obtained using laboratory frame. It is consistent with the result obtained in mass center frame.

在实验室坐标系下，给出吸能核反应所要求的阈能，其结果与质心系下得到的结果完全一致。

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Conte, who is sixty, has a thin mustache and wears small wire-frame glasses that give him the appearance of a barrel-chested laboratory chemist.

NEWYORKER: King of Walks

Mr Vlahos's breakthrough was to create a complicated laboratory process which involved separating the blue, green and red parts of each frame before combining them back together in a certain order.

BBC: Blue and green-screen effects pioneer Petro Vlahos dies