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Sentence
Span Details
極径
polar axisnoun
は
topic markergrammar
極座標
polar coordinatesnoun
系
system; lineage; group; corollary; geological system; taxonomic seriesnoun, noun suffix
で
location, means, or scope markergrammar
用い
use; make use of; utilize-> 用いるichidan verb
られる
passive, potential, or respect auxiliary-> れる/られるgrammar
概念
concept; notion; general ideanoun
だ。
plain copulagrammar