Meaning of 真の部分要素(しんのぶぶんようそ) in Japanese

elementary, principle, naked, uncovered

true, reality, Buddhist sect

need, main point, essence, pivot, key to

section, bureau, dept, class, copy, part, portion, counter for copies of a newspaper or magazine

part, minute of time, segment, share, degree, one's lot, duty, understand, know, rate, 1%, chances, shaku/100