China has 123,000 km of navigable waterways, of which 61,000 km are officially classified for commercial navigation purposes.
中国约有12.3万公里可通航的河道，其中6.1万公里为商业运输航道。
Commercial satellites provide businesses with everything from data and video transmissions to support for automated bank teller systems and consumer navigation devices.
商业卫星为企业用户提供从数据和视频传输到银行自动柜员机系统和消费者导航设备支持等各种服务。
Commercial USES for mathematical workstations are vast: from basic engineering to designer drugs and from gene therapy to celestial navigation, mathematics rules the world.
数学工作站的商业使用群体非常庞大：从基础工程到设计创意，从基因治疗到天体导航，数学统治着整个世界。
A commercial pilot's license requires you to learn how to use more sophisticated radio navigation and global positioning systems (GPS).
商业飞行执照要求更灵活的掌握无线电导航及全球定位系统。
Commercial pilots are finding they have less to do during routine portions of flights as engines navigation devices and automated flight-management systems have become more sophisticated and reliable.
民航飞行员正发现他们在常规飞行部门可做的事不多，因为飞机发动机、导航设备以及自动飞行管理系统已经变得越来越精密可靠。
For commercial AGV, accuracy, smooth and steady quality of navigation and fast adjusting quality to the deviation are the significant targets of its performance.
对于产品化agv来说，对导航路径跟踪的准确性、平稳性和对偏差纠正的快速性是体现它的性能的重要指标。
For commercial AGV, accuracy, smooth and steady quality of navigation and fast adjusting quality to the deviation are the significant targets of its performance.
对于产品化agv来说，对导航路径跟踪的准确性、平稳性和对偏差纠正的快速性是体现它的性能的重要指标。
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