The hearing screening of the children surveyed by audiometry instruments.
用测听仪器检测受调查儿童。
The screening test generally should be performed on venous plasma or serum samples using well-calibrated and well-maintained laboratory instruments.
一般检测静脉血浆或血清标本，使用经过良好校准和维护的实验室设备。
The screening test generally should be performed on venous plasma or serum samples using well-calibrated and well-maintained laboratory instruments.
一般检测静脉血浆或血清标本，使用经过良好校准和维护的实验室设备。
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