It is comparatively difficult to record the accurate locations of faults on the wide-ranged power - transmitting line under the circumstance of lack of reference.

由于输电线路的分布范围较广，在没有参照物的情况下，准确记录故障发生的位置比较困难。

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Often the rapid and diffuse movements of the infant make it difficult to get an accurate record of the number of responses.

婴儿快速而散乱的动作常常使得准确记录反应数量变得困难。

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Amrita Saxena, the mother of the child, said it was difficult for her to believe that her son broke the world record, until a friend convinced her.

该男婴的母亲阿梅·丽塔•莎茜娜说，直到一位朋友告诉她，不然她怎么也不会相信儿子竟然打破了一项世界纪录。

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Today,Frank Oliver and Doug Johnson tell about a special plane called Voyager and the effort to set a difficult world record.

VOA: special.2010.10.06

"But when they performed there on Jan. 31, the wailing music was either too difficult to record or the executives didn't care much for what they heard, " Mr. Raeburn said.

WSJ: Start Spreadin' the Blues | By Marc Myers

Horgan dived over in the corner after good work by replacement Tomas O'Leary and D'Arcy eight minutes into added time and man-of-the-match Sexton converted from a difficult angle to maintain his 100% kicking record.

BBC: Ireland 41-6 Fiji

Because they produce their music in a constant combination of write, record, mix it becomes very difficult to reproduce that for the stage.

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