annulus

基本解释

Want to treat the condition of the arenaceous water around, if if (arenaceous annulus water is held in the arms) .
要看看四周的砂水的形势，倘若是（砂环水抱）。
If you are within this path, you will see an annular eclipse where, at its maximum phase, a ring (annulus) of sunlight surrounds the Moon.
如果你在这条路径上，你就会看见日环食，在它的最大相位，一个环状阳光会包围着月球。
It consists of the flushed zone and the transition zone or annulus.
侵入带由冲洗带、过渡带或者环状空间组成。
dict.cn

Cementing fills and seals the annulus between the well casing and the drilled hole.
FORBES: The Fracking Solution Is A Good Cement Job
Its tubercles and soft tissues were inflamed, and the annulus fibrosus of its disks was the color of bad teeth.
NEWYORKER: Backbone

年轮
Of the 5 kinds of material for the age diagnosis of Tor(Folifer) Brevifilis Brevifilis,the annuli on the scale and opercular were easier to identify than the others,and the annulus on the cleithrum was very diffcult to observe.
结果表明,瓣结鱼这5种年龄鉴定材料的年轮特征各不相同。
机械工程
内齿轮