1. Without a rudder the ship was not navigable.
    这船没有舵无法驾驶。

2. The river is navigable during the rainy season.
    该河在雨季可以通行。

1. 可航行的：navigability 适航性 | navigable 可航行的 | navigate 航行

2. 正航行的：to heave to 使船停驶 | navigable 正航行的 | to sail 扬帆航行

3. 可航行的;适航的：navigable semicircle 可航半圆 | navigable 可航行的;适航的 | navigating instrument 导航仪

4. 可航的：navigable zone 航行区域 | navigable 可航的 | navigable 可航行的

1. (河流)可航行的，适于航行的
    A navigable river is wide and deep enough for a boat to travel along safely.

navigable在线翻译

    e.g. ...the navigable portion of the Nile.
           尼罗河适合航行的河段
    e.g. ...the Tiber, which was then still navigable.
           当时仍可以通航的台伯河

1. able to be sailed on or through safely

    e.g. navigable waters
           a navigable channel