1. First, he has explained the rules of tonal pattern natural quality and the social attribute, entered the poem for the rules of tonal pattern to lay the foundation;
首先阐释了声律的自然属性和社会属性，为声律入诗奠定了基础；其次，指出诗文中声律不谐的原因主要是内外不一，需要调整内听与外听的关系；
2. Neuter and tonal ash, white, black can with any tonal collocation.
中性色调的灰、白、黑可以与任何色调搭配。
3. Production Type: Casting pattern, gravity pouring Pattern, low-pressure casting pattern, Pressure casting pattern, Waxen pattern, Die-casting.
产品种类：铸造模具、重力浇注模具、压铸模具、低压铸造模具、失蜡铸造模具、冲压模具。
4. Pattern inspection: The pattern inspector should examine the pattern as per casting process drawing after pattern completion.
模具检验：模具制作完毕后，由模具检验员按照铸造工艺图对模具进行检验。
5. In photomechanical reproduction, a line screen breaks the wide tonal range found in the original into discrete intervals from 1% to 99%), creating a halftone dot pattern.
中义在制版照相的复制过程中，用线状的平网将原稿的浓度?围分解为1%到99%的不连续区段，并产生半色调的网点花纹。半色调的网点值是以百分比（%）来描述。
