In this paper we study the structure of panda fibers how to effect the birefringence (beat length) by an infinitesimal element method.

本文用微元算法研究了熊猫光纤的结构参量对熊猫光纤双折射特性(拍长)的影响。

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This causes what we call Long QT syndrome, where the length of the heart beat is longer than usual, which greatly increases the risk of arrhythmia.

这可导致所谓的长Q-T综合症。此时心律的长度较正常时延长，可大大增加心律失常的风险。

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One of the most important parameters about high birefringence fibers is the beat length. Because of its shortness and periodicity, measuring beat length is a critical one.

高双折射光纤的一个重要参数是拍长，由于拍长很短和周期性变化，如何实现准确测量是十分困难的。

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He beat Solwhit by a length-and-a-half in the Hatton's Grace Hurdle after Zaidpour's win in the previous race.

BBC: Hurricane Fly wins at Fairyhouse in Willie Mullins treble

In a thrilling final, James and fellow crew members Andy Hodge, Peter Reed and Steve Williams came from three-quarters of a length down to beat Australia and claim gold.

BBC: Profile: Tom James

The Middleham handler has now saddled five of the last nine winners of the two-mile contest after the three-year-old kept pace and accelerated in the straight to beat Yankee Doodle by four lengths, with Godolphin's Mastery third, another three-quarters of a length back.

BBC: Ghanaati romps to Coronation win