对数

Methods Far sight was examined through E Standard Logarithm Eyesight Table.

远视力检测使用E字标准对数视力表进行常规检查。

The standard logarithm Vision table lamp box after the careful design, after used , solvesinsufficient has far affected far, the near vision determinationquestion as a result of the natural light, is a present home newerproduct.

标准对数视力表灯箱经精心设计，采用后照法、解决了由于自然光线不足而影响远、近视力测定的问题，是目前国内较新型的产品。

Logarithm vision table and refractive test from a series of diopteric lens were used for screening the poor vision and the suspectmyopia, respectively.

选取全国30个省市区的7～18岁汉族中小学生，分城乡男女4群体；用对数视力表-屈光串镜结合法筛查视力不良和"疑似近视"。

Product characteristic: The standard logarithm Vision table lampbox is suitable for the child, the young people common physicalexamination, physical examination and so on recruitment of students,recruiting of workers is far, the near vision determination.

产品特点：标准对数视力表灯箱适用于儿童、青少年一般体检，招生、招工等体检的远、近视力测定。

The standard logarithm Vision table lamp box has the dualpurpose type, shines stably, brightness even, the structure novel, themodelling is artistic, easy to operate characteristic.

标准对数视力表灯箱具有两用式，发光稳定、亮度均匀，结构新颖、造型美观，使用方便的特点。

The negative logarithm to the base ten of the transmittance of a sample.

以10 为底的样品的透射的负对数。

His first design is for a machine to calculate such things as logarithm tables.

他的最初设计是为机器计算诸如对数表之类的事情。

The number raised to the logarithm of a designated number in order to produce that designated number.

被升到指定数字的对数上的数量，是为了得到那被指定的数目。

The number of which a given number is the logarithm .

一个已知数是某数对数的数。

Based on the discrete logarithm,this paper proposes a group signature schemes.

基于离散对数给出了一种组签字方案。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。