An arm of the sea similar to a fjord.挪威中部一城市,濒临特隆赫姆沥海峡.The 20 km long shallow - bottomed fjord, Otago Harbour, is the home of an abundance of wildlife.拥有20公里长的低浅峡湾的奥塔哥港, 拥有丰富的野生动植物资源.Three days later, she was photographe...
Machine technician can use this language to show the assembly project expediently.这种语言能够使机床技术人员用直观、便捷的方法来演示虚拟机床的装配方案.Non - grade speed adjustment by frequency converters, working steadily, use and maintenance expediently...