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Any of a group of amines derived from catechol that have important physiological effects as neurotransmitters and hormones and include epinephrine, norepinephrine, and dopamine.

儿茶酚胺一种从苯磷二酚中获得的胺，具有神经传感和荷尔蒙的重要生理功能，包括肾上腺、去甲肾上腺素和多巴胺

A crystalline substance, C15H14O6, derived from catechu and used in tanning and dyeing.

儿茶酸一种晶体物质，c15h14o6，来源于儿茶，用于制革和染色

Based on summarizing and analyzing predecessor' works, by means of the principle for probability and statistics, the Cauchy distribution for converting rate of polymer micro core is proposed, and the expressions of ultimate converting rate and average molecule weight is derived in the process for establishing first-principle model of polyacrylonitrile.

以化工聚合反应过程为研究背景，在总结各类模型技术特点的基础上，针对聚合过程的复杂性、时变性、非线性和不确定性等性质，提出了一种通用的化工聚合反应过程多类型混联混合模型的建模方法。

Based on predecessors'work, and the plant data of total conversion rate and number-averaged molecular mass, the Cauchy distribution of micro cores is proposed in terms of the principle of probability and statistics. The macro kinetic model with expressions of the total conversion rate and number-average molecule mass is derived from the macro mixed method.

在总结分析前人成果的基础上，利用生产现场采集的转化率与平均分子量的人工分析值，基于概率统计原理提出了丙烯腈连续水相聚合过程中聚合体微团转化速率的Cauchy分布，并由此用宏观混合法导出了由总转化率和平均分子量的表达式组成的动力学模型。

Based on the assumption that the distribution of DCT coefficients in H.264 encoder follows Cauchy distribution, a macroblock layer bit rate model was derived. Then, the distortion was predicted by a linear model using the actual distortion and the quantization parameters of the previous frame.

首先，基于H.264编码器中DCT系数服从Cauchy分布的假设推导得出H.264宏块层的码率模型；并采用线性模型利用前一帧已知的失真度和量化参数值对失真度进行预测；最后，在宏块层通过Lagrange方法最小化失真度，确定宏块的量化参数。

Based on the complex variable theory of sectioally holomorphic function, Cauchy type integral and Riemann boundary problem, the solution is derived from relationship of the sections.

通过将复变函数的分区全纯函数理论、Cauchy型积分和Riemann边值问题相结合，求得各分区之间的解析关系，获得了问题的温度场。

By matching the traction along the cracks, Cauchy singular integral equations for the branch cracks in the circular region were derived.

通过裂纹面上的应力边界条件，建立一组以位错密度为未知函数的Cauchy型奇异积分方程。

From this lion derived the later Cave Lion, which appeared about 300,000 years ago.

从这个狮子洞后得出的狮子（东北低地轨道spelaea ），这似乎约30万年前。

The applied rules for MT method are introduced,and the formula is derived for the calculation of resonant frequencies of a cavity resonator.

通过数学分析，导出用多极理论分析谐振腔本征值问题的计算公式。

The lock in effect and threshold expressions caused by backscattering from cavity mirrors in a passive resonator gyroscopy are derived based on the resonance characteristics of cavity .

从谐振腔的谐振特性出发，严格地推导出无源谐振腔激光陀螺中由腔镜背散射引起的闭锁效应关系式及闭锁阈值表达式。

And discuss some key point of integrated management system design, include hazard identification and risk assessment and risk control in the occupational health and safety management, the measure of satisfaction target of customer, the flawlessness of law system, the integration of the integrated management system and enterprise standardization system, unify lead institution and work orgnization, integreted internal audit and integrated management review.

同时，论述了一体化管理体系构建中的几个主要问题，包括职业健康安全管理中的危险源辨识、风险评价和风险控制、顾客满意度的科学监测、法律、法规体系的完善、一体化管理体系与企业标准化体系的有机结合、统一的领导机构和工作机构、一体化的内部审核和管理评审。

Deepwater Taranaki is investigated for its petroleum potential, using all available seismic data tied to shallow-water wells.

运用与浅水井相关的现有全部震波探测数据考察了深海区塔拉纳基盆地的油藏前景。