Analyzer
Sentence analysis
9Spans
Sentence
Span Details
この
this; last (couple of years, etc.); these; past; you (as in "you liar")-> 此のpre-noun adjective
重機
heavy machinery; heavy equipment; heavy machine gunnoun
の
possession, attribution, nominalizer, or nominal linkergrammar
履帯
tank tread; continuous track; caterpillar tracknoun
は
topic markergrammar
交換
exchange; swap; replacementnoun, suru verb
が
subject markergrammar
必要
necessary; needed; essential; necessity; need; requirementna-adjective, noun
だ。
plain copulagrammar