数量积

shùliàngjī

scalar product (of vectors)

数量级

shùliàngjí

order of magnitude

数量词

shùliàngcí

numeral-classifier compound (e.g. [[一次、三套、五本]] etc)

代数量

dàishùliàng

algebraic quantity

数量分析

shùliàngfēnxī

quantitative analysis

使用数量

shǐyòngshùliàng

usage (i.e. extent of use)

取样数量

qǔyàngshùliàng

sample size (statistics)