照相排版无法适用于尺寸、字体、旋转角度各异的图案。书籍将更贵，并且更稀有。
Photocomposition cannot shift to subsets of the various symbols of the world, in various sizes, fonts, rotation, etc. Books will thus be more expensive, and rarer.
用于尺寸180以上的电机机架，内置的机械密封结构应该采用一块整体结晶碳旋转密封面和一块整体结晶碳化硅固定密封面。
For motor frame size 180 and above, the inner mechanical seal shall be constructed with a solid block carbon rotating seal face and a solid block silicon carbide stationary seal face.
形状、尺寸、运动方向、旋转方向和光辐射强度等变化是航天测控视频自跟踪系统目标的重要动态特性。
Shape, dimension, moving direction, rotating direction and light radiation intensity are important dynamic characteristics of the object in space telemetry and telecontrol video auto-tracking system.
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