【long-period_variable】什么意思_英语long-period_variable的翻译_音标_读音_用法_例句_在线翻译

long-period variable

长周期变星

... long-period variable 长周期变星 ; 长周期变星 long flowering period 长花期 long-period preservation 长期保存 ...

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短语

long period variable [天] 长周期变星

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abstract: A long-period variable (LPV) is a type of pulsating cool giant variable star with periods from a few days to a thousand or more, sometimes poorly defined, and sometimes irregular. Long-period variables have spectral class F and redwards, but most are red giants and AGB giants, meaning spectral class M, S or C.

以上来源于: WordNet

Secular trend is the value of the variable tends to increase or decrease over a long period of time.

长期趋势是指变量的值在一个长时期内所呈现的增加或减少的趋势。

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The short run is the period of time that is long enough to adjust variable inputs, such as materials and production labor , but too short to allow all inputs to be changed.

短期运行指的是在时间上足够长去调整可变投入，例如原料和生产工人，但是因时间太短而不能改变所有的投入因素。

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