Examlex
What is the minimum uncertainty in the position of a neutron if the uncertainty in its speed is 0.0250 m/s?
Counterbore
A cylindrical flat-bottomed hole that enlarges another hole, typically to allow a screw or bolt head to sit flush with or below the surface of a material.
Spotface
A machined flat surface around a hole, usually to provide a seating area for a fastener head or washer.
Countersink
A conical cut made in a manufactured object, or the cutter used to create that cut, allowing the head of a screw or bolt to sit flush with or below the surface of the surrounding material.
Crosshatching
Crosshatching is a shading technique used in drawing and drafting to indicate surfaces in cut-sections, often to differentiate types of materials or components.
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