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Wing length, wing pattern on the scales clean clear, thick and powerful.
身长双翼，翼上鳞纹清澈明朗，粗壮有力。
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Side view of wing screw with adjustable thread length.
螺纹长度可调整的翼形螺钉的侧面图。
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Side view of wing screw with adjustable thread length.
螺纹长度可调整的翼形螺钉的侧面图。
youdao