以下为句子列表：
英文: NOTE The transmission technique has insufficient sensitivity to detect the discontinuities found in spheroidal graphite cast iron castings and is used in exceptional cases only.
中文: 注意:在球铁铸件的铸造中,(超声波的)发射技术对于检测非连续的铸造是不够准确的,只有在例外的情况下才使用.
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