Double circle的用法和样例：
例句
- The process marked with a double ring is an error trapping process.
使用双环标记的进程为错误捕获进程。
Double circle的相关资料：
临近单词
double fan
double
double mould-board ridging plough
double glow plasma surface alloying
double integration delta modulation
Double cut off protection device.
double absorption heat transformers
double-layer participating medium
double-focusing mass spectrograph
double satellites navigation system
Double fitting for tabulated curves
Double-channel air-water swivel
