On the average the continental shelf is about 70 km wide. One much of the Pacific Coast it is relatively narrows, only a few tens of kilometers across.
平均来说，大陆架约为70公里宽，在部分太平洋海岸其大陆架较窄，只有几十公里宽。
2
The northeastern United States coast is a continental climate temperate forest.
美国东北部沿海属大陆性温带阔叶林气候。
3
The rules of the international law have admitted the rights of the coast countries on its continental shelf.