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The systematic elimination of discrepancies between adjoining or overlapping triangulation networks from different datums by moving the origins, rotating, and stretching the networks to fit each other.



Related Terms

DRILL SOCKET

An adapter to fit a tapered shank drill to a taper hole that is larger than that in the drill press spindle.

CHART RECORDER

A recorder in which a dependent variable is plotted against an independent variable by an ink-filled pen moving on plain paper, a heated stylus on heat-sensitive paper, a light beam or electron beam on photosensitive paper, or an electrode on electro-sensitive paper. The plot may be linear or curvilinear on a strip chart recorder, or polar on a circular chart recorder.

ENGINE BALANCE

Arrangement and construction of moving parts in reciprocating or rotating machines to reduce dynamic forces which may result in undesirable vibrations.

LEADING LINE

On a nautical chart, a straight line, drawn through leading marks. A ship moving along such line will clear certain dangers or remain in the best channel.

HOODING-END

The ends of a strake that fit into the stem or stern post.

GRAVITY BED

A moving body of solids in which particles (granules, pellets, beads, or briquets) flow downward by gravity through a vessel, while process fluid flows upward; the moving-bed technique is used in blast and shaft furnaces, petroleum catalytic cracking, pellet dryers, and coolers.

BOW SPRING LINE

A bow pivot line used in docking and undocking, or to prevent the boat from moving forward or astern while made fast to a pier.

LEVECHE

A warm wind in Spain, either a foehn or a hot southerly wind in advance of a low pressure area moving from the Sahara Desert.

UPDRAUGHT

A rapid vertically moving parcel of air found in thunderstorms.

INTERFERENCE FIT

A fit when the bore is actually smaller than the shaft it is to be mated with. It is the strongest fit possible but requires heat or an hydraulic press to install. Also called a shrink or press fit.

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