sy meaning in English
SY ＝ square yard 平方码。
Examples
- Intelligent door opener sy - ii intelligent door opener sy - iii
思源智能开门机sy - ii - China national railway s steam locomotive sy class
中国铁路的蒸汽机车上游型 - Networking specifications for digital radio - relay sy - stems
数字微波接力通信系统进网要求 - Satellite - inertial guidance integrated positioning sy
惯导组合定位系统 - An infrared automatic brake control sy stem
红外线车辆自动刹车控制系统