The head center of the soldering iron head is provided with a centering pin positioned at the center point of the circular ring circle and rising a little altitude than the circular ring plane.

在所述烙铁头的头部中心有一定心针，该定心针位于圆环的圆心处，高度略微高出圆环平面。

youdao

Long is Britain's best-known Land Artist and his Stone Circle, a perfect ring of purplish rocks from Portishead beach laid out on the gallery floor, represents the elegant, rarefied side of the form.

龙是英国最著名的土地艺术家，他的“石头圈”是由波蒂斯黑德海滩上的紫色石头组成的完美圆环，放置在画廊地板上，展现了该构造优雅脱俗的一面。

youdao

If someone were to ask you what makes a ring a meaningful object — the circle of metal it consists of, or the emptiness that that metal encompasses?

如果有人问你是什么让一枚戒指成为一个有意义的物体——是它包含的一圈金属，还是金属中间的空洞？

youdao

It is a Latin word that means "ring" or "circle."

VOA: special.2009.01.11

The Ring is a circle of beech trees, planted on a hilltop that had been the site of Bronze Age and Iron Age fortifications, and a Roman temple.

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The outer ring and the inner circle are made from different alloys, which have different electric potentials.

ECONOMIST: Why the euro may be a rash move

Twice puff-adders came twisting into the alert ring of our debating coffee-circle.

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