doughnut-shaped flash lamp 环形闪光灯
doughnut-shaped steel plate 环形钢板
doughnut-shaped pressure housing 轮胎形耐压壳
doughnut shaped 环形的
doughnut-shaped spot 环形光斑
doughnut shaped igniter 环形点火装置
doughnut-shaped varistor 环形压敏电阻
It consists of a dusty, doughnut-shaped cloud of gas and dust that feeds a central supermassive black hole.
它由多尘的环状气体云和不断进入中心巨型黑洞的尘埃组成。
I'd only come inside in the hope of buying one of the doughnut-shaped bread rolls popular throughout Turkey.
我走到里面去只是想买一个油炸圈饼,这是一种在土耳其全国都很普遍的面包圈。
The Van Allen belts are two doughnut-shaped rings of charged particles-one nestled inside the other-that encircle our planet.
范艾伦辐射带是由带电粒子组成的两个甜甜圈形状的环状物——其中一个挨靠在另一个内部——环绕着我们地球。
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