superelevation

名词 n.
中文释义

英文释义

名词 n.
  1. The angle that a gun must be elevated above the line of its target to allow for the effect of gravity on the projectile.
  2. The cant of a railway track; the difference in elevation (height) between its two edges, as on a curve.
    — In the third place, the superelevation and alignment of the track, theoretically calculated for speeds of 70 to 75 m.p.h., was adequate for the 80 to 85 m.p.h. or so normally attained as maxima over the G.N. main line; but nothing whatever had been done to prepare it for the enormous increment over these figures that this run was to produce.

词形变化

superelevations plural

词源

Etymology tree
Proto-Indo-European *úp
Proto-Indo-European *-er
Proto-Indo-European *upér
Proto-Italic *super
Latin super
Latin super-lbor.
English super-
Proto-Indo-European *h₁éǵʰ
Proto-Indo-European *-s
Proto-Indo-European *h₁éǵʰs
Proto-Italic *eks
Latin ex
Latin ex-
Proto-Indo-European *h₁lengʷʰ-
Proto-Indo-European *-us
Proto-Indo-European *h₁léngʰusder.
▲
Proto-Italic *breɣʷisinflu.?
Proto-Italic *leɣʷis
Latin levis
Proto-Indo-European *-h₂
Proto-Indo-European *-éh₂
Proto-Indo-European *-yéti
Proto-Indo-European *-eh₂yéti
Proto-Italic *-āō
Latin -ō
Latin levō
Latin ēlevō
Proto-Indo-European *-tis
Proto-Indo-European *-Hō
Proto-Indo-European *-tiHō
Proto-Italic *-tiō
Latin -tiō
Latin ēlevātiō
Old French elevation
English elevation
English superelevation
From super- + elevation.
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