| 摘要 |
FIELD: medical or veterinary science. ^ SUBSTANCE: goniometer comprises rule and angular scale and pointer mounted at the opposite ends of the rule. The angular scale has direct-reading and reciprocal measuring scales. The pointer is made of a double-arm lever and has a feeler gauge. The angular meter of the blade asymmetry is mounted perpendicular to the rule and has the plumb line secured to the point where the angular meter is connected with the rule. ^ EFFECT: simplified structure. ^ 4 dwg |
