| 摘要 |
An instrument support platform system with a base, an elongated platform having front and rear portions, and a linkage coupling the base and platform. The linkage causes the rear of the platform to be raised, and the front held without lowering, when the platform is tilted down, and the reverse when the platform is raised and the rear is held without lowering. The center of gravity of an instrument on the platform is therefore held at an absolute level and slightly raised when tilting the platform, making the assembly counterbalanced and gravity biased to a level platform position.
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