“piston ring”的概念、定义、翻译、参考文献-科学参考

单词	piston ring
释义	piston ring [`pis·tǝn ´riŋ] ^{DESIGN ENGINEERING} A sealing ring fitted around a piston and extending to the cylinder wall to prevent leakage. Also known as packing ring.
随便看	center of geodesic curvature center of gravity center of inertia center of inversion center of lift center of mass center-of-mass coordinate system center-of-momentum coordinate system center of normal curvature center of oscillation center of percussion center of perspective center of pressure center-of-pressure coefficient center of principal curvature center of rises center of similitude center of spherical curvature center of suspension center of symmetry center of thrust center of twist center of volume center plug center punch

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