以下为句子列表：
英文: 1 The sample shall be considered to be representative of the stratum from which it was obtained by an appropriate, accepted, or standard procedure.
中文: 1试样应该被认为是地层的代表样品,它按照一个适当的,公认的,或者标准的程序从该底层中被取出.
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英文: A single waveshape cannot be representative of a lightning strike and so one is not specified.
中文: 单一波形不能代表一个直击雷，因而没有作定义。
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