• adj. 極好的；能延期的；首屈一指的

來自definitely的口語。

def (adj.)

"excellent," first recorded 1979 in Black English, perhaps a shortened form of definite, or from a Jamaican variant of death.

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

IGFBP3SDS最佳截定值為-1.55, 比傳統(tǒng)-2SD高, DEf為64.3%, Sp較高(89.8%),但S僅為45.8%.

來自互聯(lián)網(wǎng)

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

聯(lián)合使用上述3種測定有較佳的DEf ( 91.2% ), S ( 89.3% ) 和Sp ( 93.7% ).

來自互聯(lián)網(wǎng)

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

為什么我的辦公室里沒有一臺高清顯示屏?

來自電影對白

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

漁夫在池塘 、 湖泊和河川里試他們的運氣.

來自互聯(lián)網(wǎng)

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

首先定義為氫離子濃度負對數(shù).

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