- channel conservancy
- 航道: channel; lane; course; passa ...
- 保: defend; protect
- 内河航道保险: inland waterway insurance
- 道保: michiyasu
- 航道: channel; lane; course; passage; fairway 重要的国际航道 an important international sea-lane; 主航道 the main channel; 航道有浮标表示。 the channel is marked by buoys. 照着航道走! keep to the channel!; 航道标 navigable channel mark; 航道测量 water course survey; 航道测量船 hydrographical survey ship; 航道等级 waterway classification; 航道疏浚 waterway dredging; 航道水深 fairway depth; 航道网 waterway network; 航道信标 airway beacon
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