The field identification according to the extinction angle distinguish.

野外鉴定时可根据解理夹角相区分。

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After the instantaneous stress field identification of Steel bracket. we estimate the stress value.

钢牛腿瞬时应力场识别完成后，可立即判断其应力是否超界。

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Like morphology, bird songs have no doubt the specific characteristics with significance in classification and field identification.

鸟声和鸟类的形态特征一样，具有物种的特异性，在鸟类分类和野外识别方面是有意义的。

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This Convention, which is probably the most universal legislative instrument in the field of cultural heritage today, strengthened the identification of cultural heritage as tangible heritage since it limits its scope to monuments, groups of buildings and sites, all instances of tangible heritage.

UNESCO: Intangible Cultural Heritage