工学 〔快递服务〕 释 express mail service；EMS 邮政特快专递 邮政企业采取最快发运速度、专门处理手段及专人直接投递的邮件传递方式。
计算机应用 基于网络的信息服务 释文 emergency medical service, EMS 紧急救援系统
- half power beamwidth
- half-power beam width
- half-power beamwidth
- half-product
- half-quantum vortex
- half-quasigroup
- half-range
- half-reduced transformation
- half relaxed limit
- half-replicate experiment
- half-ring
- half sandwich complex
- half-sandwich complex
- half scale model
- half-segment
- half-shade device
- half-sheet
- half-side formulas
- half silhouette
- half-silvered
- half-silvered mirror
- half-sinusoid
- half-space
- Half-space Cooling Model
- half-space cooling model