骨こっ幹かん

noun, noun which may take the genitive case particle 'no'

skeleton; framework; structure

Refers to the core supporting framework of something, both literally (anatomical skeleton) and figuratively (organizational structure).

• 人じん体たいの骨こっ幹かんは約やく200個この骨ほねから成なる。

  The human skeleton consists of about 200 bones.

• この計けい画かくの骨こっ幹かんを説せつ明めいしてください。

  Please explain the framework of this plan.