The paper studied the ovulation rate and embryonic vitality of dam line pigs of CRP multiple cross systems.

本文以CRP配套系母猪系猪为材料，研究其排卵与胚胎活力。

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The results obtained by these methods will play a role of support to technical basis and scientific research achievements for choosing dam line.

采用超载法、强度折减法及点安全系数法评价下坝线拱坝的安全度，为该水电站坝线比选提供技术依据和科研成果支撑。

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It comprises a few rows of identical houses, built to house the workers of a hydro-electrical dam and a brief line of shops.

BBC: The dinosaur route of northwest Patagonia

At Exeter, Network Rail is using a water-filled tube to act as a dam to protect the main railway line between London Paddington and Penzance from flooding.

BBC: Braunton 'cut off' by flood water as rain hits Devon