Comstock–Needham system

（重定向自Costal vein）

The Comstock–Needham system is a naming system for insect wing veins, devised by John Comstock and George Needham in 1898. It was an important step in showing the homology of all insect wings. This system was based on Needham's pretracheation theory that was later discredited by Frederic Charles Fraser in 1938.

单词	Costal vein
释义	Costal vein 英语百科 Comstock–Needham system （重定向自Costal vein） The Comstock–Needham system is a naming system for insect wing veins, devised by John Comstock and George Needham in 1898. It was an important step in showing the homology of all insect wings. This system was based on Needham's pretracheation theory that was later discredited by Frederic Charles Fraser in 1938.
随便看	tiered array的意思 tiered burners的意思 tiered flounces的意思 tiered metabolic pathway的意思 tiered parking lot的意思 tiered seat的意思 tiered seats的意思 tiered silhouette的意思 Tiered skirt的意思 tiered spasm的意思 tiered structure的意思 tiered twisting machine的意思 tiered warehouse facility的意思 tie remover的意思 tie renewal的意思 tie renewal machine的意思 tie repairing的意思 tie replacement的意思 tie replacer的意思 tie replacing machine的意思 tier的意思 tie resin的意思 tiere sind keine sachen的意思 tie respacer的意思 tie respacing的意思