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Hexane: A colorless, flammable liquid, C6H 14, derived from the fractional distillation of petroleum and used as a solvent and as a working fluid in low-temperature thermometers.

已烷：一种无色可燃液体，C6H 14，从石油的分馏中提取，用作溶剂和低温度气压计中的工作流体

The procedure estimating the regularization parameter is the same as that the adaptive Marquardt algorithm used. The Frechet derivative is directly derived from the forward methods: SAM and FEM. With the theory of SAM and Zhang′s geometric factor, the relationship between the Frechet derivative and the geometric factor is established, at the same time, one useful corollary is given, i.

选取正则化因子时，沿用自适应的Marquardt算法中阻尼因子的选取计算方法；计算Frechet导数时，根据逐次逼近解法和张氏几何因子理论，推导出了Frechet导数与张氏几何因子的关系，得出了Frechet导数为张氏一阶积分几何因子的结论。

This gene is known as env, and in free-living viruses the protein derived from it is responsible for locking on to a cell's surface to allow the virus to enter the cell.

这一基因命名为"env"，在游离的病毒体内，由其编码产生的蛋白质负责铆钉到细胞表面以使病毒得以进入细胞内。

Relating to, containing, or derived from butter.Fragrant flowers (roses, peonies, gardenias, freesia) in pale peach, lavender, pink, yellow and cream conjure images of romance.

配以带浅桃红、淡紫、粉红、黄色和奶油色调(如玫瑰、牡丹、栀子花和小仓兰等)芬芳扑鼻的鲜花，魔幻般生成一种浪漫氛围。

A temperature-dependent revision factorα was introduced to the liquid fugacity coefficient expression derived from traditional isothermal integration.

选用较简单的Redlich-Kwong状态方程进行了上述修正，所建立的MRK状态方程在液相体积计算精度方面得到显著提高。

The fundamental concept of fuzzy set priority relation R was derived from the result obtained by Shannon method.

关系R的基本概念模糊集的优先事项是来自香农方法得到的结果。

Any of several drugs derived from furan that are used to inhibit bacterial growth.

硝基呋喃一种呋喃衍生药物，用来抑制细菌的生长

Bengalensis, L. Malabaricus, L. Sebae, L. Kasmira, cobia and Dark banded fusilier （Caesioninae: Pterocaesio tile）were incongruent with those derived from morphological taxonomic analyses.

和黑带鳞鳍梅鲷（Caesioninae： Pterocaesio tile））进行的聚类分析中，勒氏笛鲷与黑带鳞鳍梅鲷的聚类关系近于同属物种，与形态学分类存在矛盾。

Gamma-corrected RGB coordinates are referred to as R'G'B' space, and the luma value Y' is derived from these coordinates.

经过 Gamma 校正后的 RGB 坐标被称为 R'G'B 空间，其中亮度值 Y 可以从这些座标中提取出来。

The finite element equation of 3D3C CSAMT electric field is derived from Maxwell equations using Galerkin method.

首先从麦克斯韦方程出发，用伽里金方法推导了三维三分量CSAMT法的有限元方程。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。