生物学的

This article reviews Transforming growth factor-beta-β about its bionomics,biological function,gene polymorphism,and its relationship with aging.

本文就转化生长因子β基因的生物学特性、生物学功能、基因多态性及其与衰老的联系作一简要的综述。

In this study I focuses on Minaceae's molecular phylogeny , with consideration of morphological analysis. It is really helpful for us to solve taxonomic problems of higher taxa in mosses, improve study level and technique, and establish highlights in bryology.

本研究以形态学为基础对提灯藓科进行了分子系统学研究，对于解决苔藓高级分类等级的系统分类问题，提升和改进苔藓生物学研究水平与技术方法，推动苔藓生物学中其他领域的进展，均具有重要的科学意义。

Based on the well-know Pennes'' bioheat equation,we calculated theoretically temperature field of HIFU-induced BFR in tissue,and measured spatial temperature rise in BFR induced by HIFU in freshly excised cow liver at constant acoustic intensity and exposure time, and studied the effects of the physical parameters of focused ultrasound transducer such as frequency,outer radius and curvature radius,focal depth, and acoustic intensity and exposure time on the temperature field of HIFU-induced BFR.

采用生物热传导方程理论计算了HIFU生物学焦域温度场，采用微型热电偶探针测量了HIFU辐照离体牛肝时靶组织温度分布；研究了聚焦超声换能器的物理参数、辐照深度和治疗剂量对HIFU生物学焦域温度场的影响；研究了HIFU在牛肝组织中的传播衰减。

The Geobiology/Astrobiology group studies of Geobiology and Astrobiology, including elements of the atmosphere, the hydrosphere, and the lithosphere, the limits of life and habitability on our planet, organisms living at unusual conditions, searching for extraterrestrial life, and Mars.

该研究组主要是研究地理生物学和太空生物学，包括大气，水圈和岩石圈的组成，地球上生命的局限性和可居住性，异常环境中的有机生命，搜索地球外生命，以及火星。

In this study, isolation of pathogen and study on some biological characteristics was performed in several breeding sheep farms by routine methods and molecular biological methods.

本研究采用常规方法和分子生物学方法对石河子部分发病羊场疑似绵羊传染性胸膜肺炎的病例进行了病原分离及部分病原生物学特性的研究。

Presently, the study of hypoxia and its adaptation mechanism is mainly focus on the oxygen intake related system, include respiratory, circulatory and central nerve system which was highly sensitive to the concentrition of oxygen.

目前，研究者采用分子生物学、分子遗传学、细胞生物学、免疫学及电生理学等多种技术和手段，在整体、器官、组织、细胞和分子水平上，对神经、血液-造血、循环、呼吸及内分泌等系统在低氧条件下其功能的改变及低氧适应机制进行了较全面和系统的研究。

Purpose There are disputes on the mechanisms of heavy-ion radiobiological effects and radiosensitivity of mammalian cells. And these are the hot points in studies on radiobiology.

重离子辐射生物学效应机理和哺乳动物细胞对重离子的辐射敏感性机理在目前仍颇有争议，是辐射生物学研究的热点。

WELLBURN A R The spectral determination of chlorophylls a and b,as well total carotenoids,using various solvents with spectrophotometers of different resolution Journal of Plant Physiology , 1994,null

林金星 中国特有植物长苞铁杉的生物学特性及其保护生物多样性， 1995，(3)郑凌峰长苞铁杉的生态生物学特性植物资源与环境学报， 2000，4

M.E. programme in Biotechnology, offers courses with a proper blend of disciplines like genetics, molecular biology, biochemistry, and embryology and cell biol...

我计划在生物技术，提供了这样一个适当的混合遗传学科的课程，分子生物学，生物化学和胚胎学和细胞生物学。

M.E. programme in Biotechnology, offers courses with a proper blend of disciplines lik...

我计划在生物技术，提供了这样一个适当的混合遗传学科的课程，分子生物学，生物化学和胚胎学和细胞生物学。

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。