| 摘要 |
PURPOSE: A testing device of the movement visualization is provided to widen the visualizing area of the movement and to clean without separating a quartz window by improving a window installing potion and eliminating a window adaptor. CONSTITUTION: A window installing portion(12) has a bottom face with hanging sills(15) and the upper part of the window installing potion is opened. Quartz windows(11a,11b,11c) are stuck to the side of the window installing portion and hung in the hanging sills by using inclined surfaces(16). An adaptor installing potion(17) and a cleaning adaptor(18) are formed in a dummy cylinder(10). Thereby, the upper part of a combustion chamber is observed and the cleaning operation is easily performed without separating the quartz windows.
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