tidal adj. 1.潮汐的;潮水(似)的。 2.由于潮水作用的,定時(shí)漲落的;開(kāi)船時(shí)間視潮汐而變動(dòng)的(客船班次)。 His speech caused a tidal wave of indignation throughout the country. 他的演說(shuō)在全國(guó)掀起了怒潮。
variation n. 1.變化,變動(dòng)。 2.變量,變度,偏差。 3.【語(yǔ)言】語(yǔ)尾變化;變體,異體;【數(shù)學(xué)】變分,協(xié)變;順列;【生物學(xué)】變異,演變,變種;【音樂(lè)】變奏曲;【天文學(xué)】變差;(月的)二均差;【物理學(xué)】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(jià)格可能變更。 adj. -al
Observation and study of the tidal variation in gravity field 重力場(chǎng)的潮汐變化觀測(cè)及其研究
Harmonic method : the representation of tidal variations as a sum of harmonics known as constituents each of different frequency , amplitude and phase 調(diào)和法:將潮汐變化分解為不同頻率,振幅和相位角的諧波(即分潮)的方法。
Tidal variations are mainly caused by the gravitational attractions of the moon and the sun . near new moon or full moon each month , the earth , moon and sun are aligned along a straight line and the sea - level rise and fall will have a larger range . this is called a spring tide 潮汐變化主要受月球和太陽(yáng)的引力影響,每月的新月或滿月前后,地球月球和太陽(yáng)三者連成一線,水位會(huì)升得特別高和降得特別低,這現(xiàn)象稱之為大潮或天文大潮。
Tidal variations are mainly caused by the gravitational attractions of the moon and the sun . near new moon or full moon each month , the earth , moon and sun are aligned along a straight line and the sea - level rise and fall will have a larger range . this is called a spring tide 潮汐變化主要受月球和太陽(yáng)的引力影響,每月的新月或滿月前后,地球、月球和太陽(yáng)三者連成一線,水位會(huì)升得特別高和降得特別低,這現(xiàn)象稱之為大潮或天文大潮。