The laser trap can keep a tiny sphericalsample - measuring only a millimeter across - levitated so experiments can be done.
激光阱能使一个直径仅1毫米的微小的球形样品保持悬浮,这样就可以做实验了。
2
The laser trap can keep a tiny sphericalsample — measuring only a millimeter across — levitated so experiments can be done.
激光阱能使一个直径仅1毫米的微小的球形样品保持悬浮,这样就可以做实验了。
3
By the calculation it is found that the decreasing radius is all the same for different particle radius at per unit time when the sphericalsample particle is evaporated.