For one step direct method, it is essential to have a two dimension pattern plate with high resolution, high contrast and low noise.

一步直接法，必须要有高分辨率，高对比度和低噪声的二维模板，否则必然导致失败。

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For one step direct method, it is essential to have a two dimension pattern plate with high resolution, high contrast and low noise.

一步直接法，必须要有高分辨率，高对比度和低噪声的二维模板，否则必然导致失败。

youdao