navigation coverage造句

例句与造句

1. The OpenCellID project was primarily created to serve as a data source for GSM localization in areas bereft of satellite navigation coverage.
2. Air navigation coverage has recently been improved through the deployment of Automated Dependent Surveillance-Broadcast ( ADS-B ) technology in parts of northern Canada.
3. It's difficult to find navigation coverage in a sentence. 用navigation coverage造句挺难的