除灰过多，火层低于炉栅顶端，而总层又偏高。
Ash is overmuch, fire resistant layer below the furnace, and the total floor joists top and on the high side.
给出了紫外全息光栅的闪耀特性分布曲线并分析了三角槽形光栅顶角大小对衍射效率的影响。
The efficiency curves of blazed characteristic of sinusoidal grating is presented. And the influence of apex angle on diffraction efficiency of triangle grating is debated.
小径高比的叶片采用静叶片的正倾斜的方法能够有效地控制流道内部的径向二次流和叶栅顶部的分离流动；
The method of forward leaning stator blade, which can effectively control the radial second flow and the top separate flow, is applied to the design of the small diameter-height ratio blade.
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