basis

名词 n.
中文释义
英 /ˈbeɪ.sɪs/    美 /ˈbeɪ.sɪs/|/ˈbæɪ.sɪs/

英文释义

名词 n.
  1. A physical base or foundation.
    — 1695, William Congreve, To the King, on the taking of Namur, 1810, Samuel Johnson, Alexander Chalmers (biographies), The Works of the English Poets from Chaucer to Cowper, Volume 10, page 271, Beholding rocks from their firm basis rent; Mountain on mountain thrown, With threatening hurl, that shook th' aerial firmament!
  2. A starting point, base or foundation for an argument or hypothesis.
    — I wonder if the South Korean side has any basis that its smog is from China.
  3. An underlying condition or circumstance.
    — Hodgson may now have to bring in James Milner on the left and, on that basis, a certain amount of gloss was taken off a night on which Welbeck scored twice but barely celebrated either before leaving the pitch angrily complaining to the Slovakian referee.
  4. A regular frequency.
    — You should brush your teeth on a daily basis at minimum.
  5. The difference between the cash price a dealer pays to a farmer for his produce and an agreed reference price, which is usually the futures price at which the given crop is trading at a commodity exchange.
    — Included in the basis could be elevation, cleaning, freight by truck and/or rail, government inspection fees, administration fees, interest and storage charges as well as allowance for risk and profit for the grain dealer.
  6. In a vector space, a linearly independent set of vectors spanning the whole vector space.
  7. Amount paid for an investment, including commissions and other expenses.
  8. A collection of subsets ("basis elements") of a set, such that this collection covers the set, and for any two basis elements which both contain an element of the set, there is a third basis element contained in the intersection of the first two, which also contains that element.
    — The collection of all possible unions of basis elements of a basis is said to be the topology generated by that basis.

词形变化

bases plural baseis plural,rare basises nonstandard,plural

词汇关系

衍生词
accrual basis basic basis point basis spline basis vector basiswise Bernstein basis polynomial cash basis cost basis eigenbasis fare basis Fourier basis Gröbner basis Hamel basis Hilbert's basis theorem normal basis on a case-by-case basis on a daily basis on a day-to-day basis on a first-name basis on a need-to-know basis on an irregular basis on a regular basis on the basis of polynomial basis rational basis review Schauder basis subbasis tax basis

词源

From Latin basis, from Ancient Greek βάσις (básis), from Proto-Indo-European *gʷémtis, derived from Proto-Indo-European *gʷem- (whence also come). Doublet of base.
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