| 释义 |
ˈcross-multipliˈcation Arith.
[cross- 9.]
= duodecimals.
1703T. N. City & C. Purchaser 123 Cross-Multiplication is the Multiplying of Feet and Inches by Feet and Inches. 1751Chambers Cycl., Cross-multiplication..so called because the members are multiplied cross-wise. 1836J. Gray Arith. 95 Duodecimals, or Cross multiplication, is a rule by which artificers cast up the contents of their work. |