请注意，如果“0”不是有效数字，此说明符永不显示“0”字符，即使“0”是字符串中唯一的数字。

Note that this specifier never displays the '0' character if it is not a significant digit, even if '0' is the only digit in the string.

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要在显示单元中生成立体图像，必须在图像引擎中把原始图像数据处理成符合显示单元要求的体素说明符。

In order that display 3d image in display unit, primitive graphics data must be transformed to a series of voxel descriptors by graphics engine.

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