Planck length

例句：

1. 1. The physicist calculated thePlanck length to be approximately 10^-35 meters.
   物理学家计算出普朗克长度大约为10^-35米。
2. 2. Inquantum mechanics, thePlanck length is used asa unit of measure for very smalldistances.
   在量子力学中，普朗克长度被用作非常小距离的单位。
3. 3. The theory of relativity statesthat the speed of light is constant,and the Planck length is equal tothe speed of light divided by the squareroot of 2.
   相对论理论指出光速是恒定的，而普朗克长度等于光速除以根号2。