每行包含一个彩色的百分数；这个百分数是这一行上的数字和下一行上的数字的比值。

Each row has a colored percentage; the percentage is derived via the ratio of the number on this row and the one under it. Table 1 shows what the Numbers indicate, starting at the top.

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注意：如果在一行空间上的浮动元素过多，超出了空间的容纳范围，它就会自动跳到下一行中，直到一行有足够的空间容纳它。

Note: If there is too little space on a line for the floating element, it will jump down on the next line, and continue until a line has enough space.

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日期写在信笺的右上端，位于信头下一行，信内地址上一行。

The date is always on the upper side of the right, and one line under the heading and one line above the inside address.

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