noun
fractional sampling; method of quartering; quartation
Archaic technical term for a sampling or assaying method that involves dividing material into four parts; also known as quartation. Rare in modern usage.
四分法は、かつて鉱石の分析に用いられた手法である。
The method of quartering was once a technique used for ore analysis.
noun
method of lunar calendar formulation
Historical term for a method used in formulating the lunar calendar. Limited to traditional calendar studies.
四分法は、太陰暦の作成に使われた古い計算法の一つだ。
The quartering method is one of the old calculation methods used for creating the lunar calendar.