def是什么意思

实用例句

1. The IGFBP - 3 SDS was - 1.55 with S 45.8 % , Sp 89.8 %, DEf, 64.3 %.

IGFBP3SDS最佳截定值为-1.55, 比传统-2SD高, DEf为64.3%, Sp较高(89.8%),但S仅为45.8%.

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2. The joint use of these 3 laboratory assays showed higher S ( 89.3 % ), Sp ( 93.7 % ), and Def ( 91.2 % ).

联合使用上述3种测定有较佳的DEf ( 91.2% ), S ( 89.3% ) 和Sp ( 93.7% ).

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3. Why don't I have a hi def in my office?

为什么我的办公室里没有一台高清显示屏?

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4. Fishermen try their luck in ponds & def lakes and rivers.

渔夫在池塘 、 湖泊和河川里试他们的运气.

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5. It is firstly def ined as minus logarithm PH indicator.

首先定义为氢离子浓度负对数.

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