There is clearly a platform just under the surface, which he is standing on.
很明显水面以下有一个平台，他就站在上面。
Device for working surface, especially lifting platform, and method for operating such device.
用于表面处理的装置，特别是升降工作的吊盘，和使这种装置工作的方法。
But suppose a beam were to skim across the surface of the rotating platform.
但是假设一束光从那个转动的平台上擦过。
Research of complex curved surface machined on the platform has been done.
基于此开放式数控平台，进行了复杂曲面加工的研究。
Research of complex curved surface machined on the platform has been done.
基于此开放式数控平台，进行了复杂曲面加工的研究。
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