“helical scanning”的概念、定义、翻译、参考文献-科学参考

单词	helical scanning
释义	helical scanning [`hel·ǝ·kǝl `skan·iŋ] ^{COMMUNICATIONS} A method of facsimile scanning in which a single-turn helix rotates against a stationary bar to give horizontal movement of an elemental area. ^ENGINEERING A method of radar scanning in which the antenna beam rotates continuously about the vertical axis while the elevation angle changes slowly from horizontal to vertical, so that a point on the radar beam describes a distorted helix.
随便看	α Boötis α-bromo-meta-xylene α-bungarotoxin α Canis Majoris α Canis Minoris α Carinae α-cellulose α-chloralose α Crucis α-cyclopropyl-α-\\(para-methoxyphenyl\\)-5-pyrimidine-methanol α-d-glucochloralose α-dichlorohydrin α Lyrae α-methylanisalacetone α-methylbenzyl acetate α-methylbenzyl alcohol α-methylbenzylamine α-methylbenzyl ether α-methyl-para-tyrosine α-methyl styrene α-naphthol α-naphthylthiocarbamide α-phellandrene α Piscis Australis α-toluic acid

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