The vertically float die block and slide plate of combination movement have been adopted in the die to form a ring part on a single stroke of the press with high productivity.

该弯曲模采用浮动模块和复合运动的滑板，使环形零件在压力机一次行程中成形，工作效率高。

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The wear tests with ring on block wear test machine and corrosion tests were carried out.

用环块磨损试验机进行了磨损试验，并进行了腐蚀试验。

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Methods Improved the traditional round block technique reduction mammaplasty to make the design of internal and external ring more reasonable and simple.

方法：将传统双环法缩乳术加以技术改进，使内外环的设计定位合理、简单。

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"For the May eclipse, the moon will be at the furthest distance from Earth that it ever achieves -- meaning that it will block the smallest possible portion of the sun, and leave the largest possible bright ring around the outside, " the agency said on its website.

CNN: Upcoming solar eclipse to project 'ring of fire'