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这些不稳定的接头一旦偏离正常的直线位置就很难校正。
These unstable joints are very difficult to correct once they deviate from the normal, straight position.
youdao
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这些不稳定的接头一旦偏离正常的直线位置就很难校正。
These unstable joints are very difficult to correct once they deviate from the normal, straight position.
youdao