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Valve

[vælv]

解釋/意思:

(noun.) one of the paired hinged shells of certain molluscs and of brachiopods.

(noun.) the entire one-piece shell of a snail and certain other molluscs.

(noun.) control consisting of a mechanical device for controlling the flow of a fluid.

(noun.) device in a brass wind instrument for varying the length of the air column to alter the pitch of a tone.

(noun.) a structure in a hollow organ (like the heart) with a flap to insure one-way flow of fluid through it.

手打:奥利--From WordNet

解釋/意思:

(n.) A door; especially, one of a pair of folding doors, or one of the leaves of such a door.

(n.) A lid, plug, or cover, applied to an aperture so that by its movement, as by swinging, lifting and falling, sliding, turning, or the like, it will open or close the aperture to permit or prevent passage, as of a fluid.

(n.) One or more membranous partitions, flaps, or folds, which permit the passage of the contents of a vessel or cavity in one direction, but stop or retard the flow in the opposite direction; as, the ileocolic, mitral, and semilunar valves.

(n.) One of the pieces into which a capsule naturally separates when it bursts.

(n.) One of the two similar portions of the shell of a diatom.

(n.) A small portion of certain anthers, which opens like a trapdoor to allow the pollen to escape, as in the barberry.

(n.) One of the pieces or divisions of bivalve or multivalve shells.

錄入:特德

解釋/意思:

n. one of the leaves of a folding-door: a cover to an aperture which opens in one direction and not in the other: one of the pieces or divisions forming a shell: (anat.) a membraneous fold resembling a valve or serving as a valve in connection with the flow of blood lymph or other fluid—also Val′va.—adjs. Val′val pertaining to a valve; Val′vāte having or resembling a valve or valves: (bot.) meeting at the edges without overlapping as the petals of flowers; Valved having or composed of valves.—ns. Valve′-gear the mechanism for working a valve; Valve′let Val′vūla Val′vūle a little valve: (bot.) formerly used of the pieces which compose the outer covering of a pericarp.—adj. Val′vūlar.—n. Valvūlī′tis inflammation of one of the valves of the heart.

乔纳森手打

例句/造句/用法:

錄入:史黛西

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