槽头螺钉的俯视图。
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。
Top view of wing screw. selection box represents thread diameter.
翼形螺钉的俯视图。选择框代表螺纹直径。
Screw on spoiler and additional wing.
拧紧扰流板和附加翼子板。
The air crash took place because a screw on the plane's wing came loose.
空难发生的原因是机翼上的一根螺丝松了。
The air crash took place because a screw on the plane's wing came loose.
空难发生的原因是机翼上的一根螺丝松了。
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