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The understanding of biogeochemical cycle of hydrogen, oxygen, carbon, nitrogen, and sulfur elements in nature ecosystem have increased substantially in the past two decades owing to the improvement of gas isotope ratio mass spectrometer and the wide application of isotopic studies with these elements.

近20年由於「气相同位素比值质谱仪」的改良和氢、氧、碳、氮和硫等稳定同位素的广泛研究，稳定同位素的研究技术已实质增加我们对於这些元素在自然生態系中生地化循环的瞭解。

However, he has a wide variety of interests including the evolution and diversification of modern amphibians such as frogs, statistical shape analysis, the biogeography of southern continents, and imaging specimen data.

同时，他对于其他近现代的两栖动物的进化研究也有着浓厚的兴趣，包括青蛙，统计形状分析，南部大陆生物地理学，数据和图像标本等等。

The PBIL World Wide Web server developed by Laboratory of Biometry and Evolutionary Biology and the Institute of Biology and Chemistry of Proteins is dedicated to molecular biology and ecology.

PBIL万维网服务器是由生物测量学与进化生物学实验室及蛋白质生物学和化学研究所联合创立，其致力于分子生物学和生态学。

GEN is the source for news on biotechnology, bioregulation, bioprocess, bioresearch and technology transfer. In addition to news and feature articles, each issue of GEN includes BioProcess Tutorials, New Products, Wall Street Biobeat, Clinical Trials Update, Collaborations and Agreements, University Gene Beat, People, Calendar and Biotechnology on the World Wide Web.

同时基因工程新闻网也是生物技术，生物调控，生物处理，生物研究和生物技术转化类新闻的主要提供者，其它还包括生物加工指南，新产品，临床试验最新信息，合作与交流，以及互联网上人及生物技术类信息。

In this paper,a biorthogonal multicode CDMA system (called BMC-CDMA) is proposed so as to transmit higher rate data to fit the requirement of technical development of wide band CDMA system.

张平在直接序列扩频通信系统中，为了有效地实现用户高数据率的传输，以适应宽带CDMA技术发展的要求，本文提出了一种双正交多码CDMA系统。

It is thought that the human lineage developed routine bipedalism as a strategy for living on the ground when climate change decimated the forest, leaving wide belts of open terrain with no trees.

"笨拙地行走是原始人类预适应性行走的开始，尤其是以其特殊的髋关节和膝关节去适应两足行走，"克朗普顿解释说。

In "Orrorin tugenensis Femoral Morphology and the Evolution of Hominin Bipedalism," the authors articulate that the analysis and morphological comparisons among femora from the fossils showed that O. tugenensis is distinct from those of modern humans and the great apes in having a long, anteroposteriorly narrow neck and wide proximal shaft.

在图根原人股骨形态与两足动物的进化问题上，作者确认：经分析与比较它们的股骨化石形态表明，图根原人与现代人和类人猿有明显的不同，它们的骨杆较长且细，近端骨干较为宽大。

Dickinson was a spinster of thirty-one, birdlike in habit and appearance, with fine chestnut hair and abnormally wide-set eyes, whose color she compared to sherry.

迪金逊是一个31岁的老姑娘，干净利索。她有一头栗色的头发和一双异常大的眼睛，并自称肤色像雪利酒。

Due to the better characteristics of Bismuth and Molybdenum, they have a wide potential use in practice.

由于铋、钼有很好的物理特性，实际应用很广，另外，这两个核素的中子全截面与共振参数现有数据存在一些分歧。

Consider the dependencies between the coefficients and their parents, a non-Gaussian bivariate distribution is given, and corresponding nonlinear threshold function is derived from the model using Bayesian estimation theory. According to non-subsampled Contourlet transform and bivariate threshold function, a novel Non-Subsampled Contourlet Transform based on Bivariate threshold function for image denoising is proposed. This scheme achieves enhanced estimation results for images that are corrupted with additive Gaussian noise over a wide range of noise variance.

该文依据非下采样Contourlet分解系数与其父系数之间的相关性，给出非高斯双变量分布，对该模型应用Bayes估值理论推导得到相应的非线性双变量阈值函数，综合非下采样Contourlet分解和双变量阈值函数，提出一种基于双变量阈值的非下采样Contourlet变换图像去噪方法。

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。