variation n. 1.變化,變動。 2.變量,變度,偏差。 3.【語言】語尾變化;變體,異體;【數(shù)學】變分,協(xié)變;順列;【生物學】變異,演變,變種;【音樂】變奏曲;【天文學】變差;(月的)二均差;【物理學】磁差。 a principle without variation 不變的方針[原則]。 be capable of variation 可能變化。 be liable to variation 容易變化。 These prices are subject to variation. 上列價格可能變更。 adj. -al
In this paper , the author analyses various form factors and shapes of a few hullform alternatives of a 2000 teu container , by use of the methods of experience , design charts , to estimate their performance ; adopting numerical methods to calculate their drag and effective horse power , studies the principal effects of both form - factor variations and hull shape change on their hydrodynamic performance , and other problems to be noticed in ship remoulding 本文主要通過對2000箱集裝箱船的幾個變形船型的主要參數(shù)和形狀進行分析,采用經驗法和圖譜方法對各變形船型作性能估算分析,并用數(shù)值方法計算各船型的阻力性能,初步探討船型參數(shù)、形狀改變對性能影響的主要方面,研究改型時應注意的問題。