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median fold造句

"median fold"是什么意思  
造句與例句手機(jī)版
  • Some, like the Rhynchonellida and Spiriferida, may be strongly plicate, with a median fold and sulcus.
  • A rich wide band of black is found along the median fold in some specimens, in others this is absent.
  • There is a slender black streak along the sub-median fold from near the base to the middle of the wing, edged above by a whitish streak.
  • The costa is sometimes suffused with blackish towards the base and there is a black streak on the sub-median fold from the base to one-third, the apex acute.
  • Anthropologist Carleton S . Coon states that the " median fold " occurs in Slavic populations, while the " true inner or mongoloid fold " appears in populations of the east and the far north.
  • The hindwings are dark grey, in males with a long light violet-grey hairpencil lying in the median fold and reaching the end of the cell, and a shorter but denser light grey hairpencil in the submedian fold.
  • There are three transverse series of very obscure marks formed by a blackish irroration, the first nearly straight, from one-fourth of the costa to the sub-median fold before the middle, the second from the middle of the costa very obliquely outwards to the disc at three-fourths, where it is curved abruptly around and terminates in the disc at two-thirds, with some irregular marks beneath it.
  • It's difficult to see median fold in a sentence. 用median fold造句挺難的
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