400m方案一次建成  scheme of non-staged construction of NRL 400m

Boole一次式  Boolean primary

CC型一次表面  CC(Cross Corrugated) type primary surface

CU型一次表面  corrugated-undulated primary surface

k一次增生算子  k-subaccretive operator

n元一次同余方程组  linear congruence equations with n unknown

OTP 一次性编程  OTP

OTP一次性口令  OTP one-time password

s元一次不定方程  indefinite equation with the s Unknowns

TA一次注流  TA primary side injection current

φ一次增生算子  subaccretive operator

八日一次的  octan

半钢子午胎一次法成型机  single stage semi-steel radial tire molding machine

半年一次的  biannual

半月一次的  semimonthly

宝丽来一次成像相机  Polaroid

北美的PCM一次群系统  t-1

边界一次回波  ability of phosphorus-solubilizing

变电站一次设备地图  primary equipment map of substation

变流量一次泵水系统  variable primary flow chilled water system