用测听仪器检测受调查儿童。
The hearing screening of the children surveyed by audiometry instruments.
方法共对28709名0-6岁儿童进行听力筛查，主要采用行为测听法，6个月以下儿童兼做耳声发射。
Methods 28709 0-6 years children were screened by behavior hearing test mainly. Children below 6months were screened by OAEs, too.
在声场测听条件下，对17名儿童（33耳）进行助听前和助听后的声场听阈测试。
The present study has tested unaided and aided thresholds of 17 children (33 ears)in sound field.
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