利用这套图解曲线或表达式，使得在各种可能线型组合下的嵌镶尺寸和点阵畸变的测算可用手工处理，并使电子计算机快速计算成为可能。
By using the above diagrammatic curves and corresponding formulae, we have made the calculation possible directly by hand, or quickly on-line by computer.
利用这套图解曲线或表达式，使得在各种可能线型组合下的嵌镶尺寸和点阵畸变的测算可用手工处理，并使电子计算机快速计算成为可能。
By using the above diagrammatic curves and corresponding formulae, we have made the calculation possible directly by hand, or quickly on-line by computer.
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