将指定之数字的字串表示，转换为相等的双精确度浮点数。

Converts the specified string representation of a number to an equivalent double-precision floating-point number.

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使用指定之文化特性专属格式资讯，将指定之物件的值转换为双精确度浮点数。

Converts the value of the specified object to an double-precision floating-point number, using the specified culture-specific formatting information.

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双振镜扫描运动是一种精确度高、速度快、运行稳定的工作方式。

Dual galvanometer scanning is a working of high accuracy, high speed, reliable movement.

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