The single nucleotide polymorphisms (SNP) of pituitary specific transcription factor 1 (PIT-1) gene was analyzed in Xiang pig, Shanghai White pig and Yorkshire pig.

对香猪、上海白猪、大约克夏猪的垂体特异性转录因子(PIT - 1)基因进行了单核苷酸多态性(snp)分析。

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Revelation 9:1 and the fifth angel sounded, and I saw a star fall from heaven unto the earth: and to him was given the key of the bottomless pit.

启9：1第五位天使吹号，我就看见一个星从天落到地上，有无底坑的钥匙赐给它。

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It is showed that:(1)the major surface damage patterns due to grinding are microplastic deformation trace, fracture chipping pit, microcracks, and subsidence in the loosen region of material;

结果表明：磨削损伤的主要形式有显微塑性变形磨痕、断裂剥落坑、磨削微裂纹和材料疏松区的塌坑；

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