航行区域

海关指定区域，是指以中途监管站为中心，一定范围内的航行区域。

The term " the specified area " refers to the navigation area centering around an MSO within a certain range .

可根据潜艇的设计参数、任务及航行区域等因素来选取最可能的分布形式获得潜深分布密度函数。

The diving depth distribution density function of an actual submarine or submersible can be determined by considering all the factors of the design parameters , task and action area .

海上航行受限制区域的探讨

Discussion on the Restricted Area in Navigation at Sea

学生：嗯如果他们很轻易的就可以航行这么广阔的区域，

Stu : Well if they could travel so easily over such a large area ,

随通气空化数的减小，超空泡航行体尾部沾湿区域阻力系数也逐渐减小。

The drag coefficient of the aft wetted area of vehicle also decreased with the ventilated cavitation number .

西北太平洋，尤其是中国及其附近海域是船舶航行比较密集的区域，也是台风活动非常频繁的海域。

The North-West Pacific , especially China Sea and her adjacent area is often affected by typhoon and at the same time it is one of the busiest sailing area for various ships especially merchant vessels .