辅助元件固定螺母
secondary element retaining nut
辅助元件总成
secondary element assembly
超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
超声辅助助剂提取技术
ultrasounic extraction technology
计算机软件辅助测量
Computer software technique
硬件辅助的高阶除错
hardware assisted high level debugging
支路单元-从属单元辅助单元
trunk cardstributary unit
Ⅰ类和Ⅱ期辅助T细胞
type 1 helper and type 2 helper T cells