质的

The origin of such large amounts of constitutive heterochromatin and their role in karyotype evolution and speciation remain a mystery.

如此大量的结构异染色质的来源及其在染色体组型进化和物种形成中的任务仍是一个谜。

In this paper, we consider the present value function of a homogeneous portfolio composed by n whole life insurance policies under the stochastic interest rate.

考虑在随机利率情形下由n个同质的被保人所组成的终身寿险组合的现值函数。

Building Morphology: These types of buildings always possess some characteristics such as large span, modular structure and homogeneous space.

建筑形态：工厂有此类型建筑的一些共同的特点：如大跨度，模块化结构和均质的空间。

The following conclusions have been made in this paper.(1) Based on CO_2 flux data of eddy covariance, variation characteristics of gross primary productivity in four flux observation stations were studied, which are an alpine meadow, an alpine shrub meadow, a swamp alpine meadow and a steppe alpine meadow at Dongxiong. The results show that photosynthetic capacity of the alpine meadow is the highest, and the annual total GPP is 652.2g C/m~2. Daily-differencing approach is used to analyze the random error of CO_2 fluxes measurements. The results show that the distribution of random error follows more closely follows a double-exponential, rather than a normal distribution, capturing the high peak and thick tail, and the random error varies with environment variables, which violates the assumptions for the ordinary least squares fitting with normality and homoscedasticity, consequently, we introduce maximum likelihood method for parameter optimization.

本文主要在以下几个方面开展工作并获得了一些认知和结论：(1)通过分析样带区域内高寒草甸、高寒灌丛、沼泽化湿地和草原化高寒草甸四个通量观测站点草地生态系统总初级生产力变化特征，研究结果表明HBBT矮嵩草草甸生态系统植被光合作用能力较强，年GPP总量为652.2 gC/m~2，明显高于其他三种生态系统；通过利用"单塔日变化法"获得四站点通量观测数据随机误差，结果表明通量观测随机误差概率分布呈现尖峰厚尾的特征，与正态分布相比，更服从双边指数分布，进一步分析表明通量观测随机误差随环境变量(风速、温度和光合有效辐射)的变化而变化，这违背了普通最小二乘法进行生态过程模型参数优化正态分布且误差同质的假设，因此本研究中引入最大似然法进行生态过程模型参数优化。

A slightly curved piece of resilient wood with taut horsehair strands, used in playing certain stringed instrument.

有硬马鬃弦的轻质的弯曲的弹性木头，用于弹奏某种弦乐器。

The growth that technical evolution is the scale amount that has a description to its essentially is intercurrent be born to improve a process character.

技术进化实质上就是对其进行描述的标度数量的增长并发生质的提高过程。

Histological analysis From day 14 after the operation, osteoblast-like cells appeared in clusters adjacent to vascular sinuses on either side of the fibrous interzone.

组织学分析术后第十四天，在延长部的纤维组织血管窦附近，可见成簇存在的成骨细胞样细胞，并可观察到类骨组织样基质的出现。

According to the specialty of the structure,it may be predicted that the function of Kail gene come down to cell-cell adherence and cell-matrix connection.

结构分析提示它在细胞与细胞间粘附、细胞与基质的连接中可能起有一定作用，研究也证实它可以增强肿瘤细胞之间的聚集能力，降低其吞噬能力及侵袭能力，而不影响细胞的增殖力。

The efficiency of the elimination of such minerals is measured by the ash content of the residual kerogen.

这些无机物的消除程度是用剩余油母质的灰分含量来测定的。

Longitudinal wave and thermal membrane programs of osteoarthritis kneepad can delay degeneration of cartilage macroscopic morphology, chondrocyte and cartilage matrix. Moreover, its effect is superior over microwave treatment, electricity or thermal membrane treatment alone.

治疗型关节炎护膝的疏密波+热软膜程序能延缓膝关节软骨宏观形态、软骨细胞及软骨基质的退变，效果优于微波仪治疗或单纯的疏密波、热软膜治疗。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。