A water-bearing portion of a petroleum reservoir with a water drive.

石油储集层的含水部分，具水驱能力。

youdao

The connection portion connects the first and second bearing portions at a position opposite the gap with respect to the rotational center axis.

和设置在第一支承部、第二支承部或连接部上并构造成与所述安装构件接合的接合部，其中所形成的间隙使所述旋转轴能够通过该间隙。

youdao

Each of the rollers (15) has a bearing portion of a rotary shaft 17 formed inside the gear portion (22) at the outer circumference of the drive gear (13).

各滚筒(15)的旋转轴(17)的轴承部形成于上述驱动齿轮(13)外周的齿部(22)的内侧。

youdao