查询词典 sampling fraction

The results showed, in the early period of hormone treatment, the fraction of seminiferous tubules which dominated by sperm or spermatid appeared to decrease compared with the controls.

结果观察到在实验前期阶段，与对照组相比，处理组中随着所注射激素浓度的增加，生精小管中以精子/精细胞占主要的小管所占的比例呈降低趋势。

Holding 5 min at 565 °C, the homogeneous semisolid microstructure with solid fraction of 57% and mean grain size of about 58 μm is obtained.

°C等温5 min，即可获得固相率为57%，颗粒平均直径为58 μm、形状圆整、分布均匀的半固态组织。

Elemene is an effective antitumor fraction abstracted from Chinese traditional medicine Curcuma aromatica. It is a sesquiterpene compound with molecular weight of 204 Da and only contains carbon and hydrogen.

榄香烯是从中药莪术的新品种温郁金中提取的有效抗癌成分，它是一种倍半萜类化合物，分子量仅为204，只含碳氢。

Results show that the antibacterial component belongs to volatile oil、sesquiterpene、phenols and organic acids. The antibacterial part of the broth was isolated by silica gel column and 6 fractions of obviously antibacterial activity were obtained .By further study Fractions 1、2、3 contain sesquiterpene and fractions 8、9 contain phenols and fraction 10 contains phenolic organic acid.

对发酵液抑菌成分的研究表明，抑菌活性成分组成为挥发油倍半萜、酚和有机酸等类化合物，采用硅胶柱层析对发酵液抑菌活性部位进行分离实验，得到了6个具有明显抑菌活性的粗组分（组分1、2、3、8、9、10），其中组分1、2、3含有倍半萜类物质，组分8、9含有酚类物质，组分10中有含酚羟基的羧酸类物质。

For example, six fractional sexagesimal places of a day was used in their specification of the length of the year, although they were unable to measure such a small fraction of a day in real time.

古希腊天文学家，包括希巴谷和托勒密，定义太阳日的24分之一为时。以六十进位细分时，使得秒是一太阳日的86，400分之一。

What fraction of the area of ABC is the area of the shaded part?

阴影部分是ABC部分的一个小部分吗？

The predicted two-dimensional axisymmetric distributions of density and mass fraction were converted to the three-dimensional distributions,and then the computational shadowgraph s were obtained based on the optics theory of the shadowgraph.

并将计算获得的密度和组分等的轴对称二维分布转换为三维分布，由阴影图的光学原理，绘制了相应的计算阴影图。

A fraction of respect, man.- It's not like that. Sibyl's sacred.

一点点尊敬-不是这样的，西碧是神圣的

It is now known that genetic variability accounts for 25% of susceptibility to the disease, but that variations in the sickle-cell gene contribute to only a fraction of that.

现在，25 ％的对疾病的敏感性被归咎于遗传变异。但在镰细胞基因上的变异仅仅参与了其中的一小部分。

It is composed primarily of water ice but must have a considerable fraction of denser material like silicate rock.

它主要由冰水混合物组成，但可能由有待考虑的更质密的硅酸盐石组成。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。