作者: Hsuan-Sen Shiao
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摘要: A combined leveling device and laser pointer includes a support body which holds bubble tube rotary seat. The seat extends from front face to rear of the has through-hole tapered clamping hole section that is in direction face. graduated adjacent face, clamp movably provided through-hole. plurality resilient members are resiliently movable toward or away one another when moves into outward section. detachable light source unit insertable so as be clamped removably by members. hologram mounted produce one-dimensional linear projection image unit. After inserted clamp, fixed section, thereby firmly holding