查询词典 conservation

From the homogeneity of time we can deduce mechanical energy conservation law, and from the homogeneity and isotrogy of space we can deduce monentum conservation law and angular momentum conservation law.

从时间的均匀性可推得机械能守恒定律，从空间的均匀性和空间的各向同性可分别推出动量守恒定律和角动量守恒定律。

The neutrino was first postulated in 1930 by Wolfgang Pauli to preserve the conservation of energy, conservation of momentum, and conservation of angular momentum in beta decay—the decay of an atomic nucleus into a proton, an electron and an antineutrino.

中微子是1930年由沃尔夫冈泡利为了保持能量守恒，动量守恒和β衰变---一个原子核（那时还没有认识到是中子）衰变成一个质子、一个电子和一个反中微子的角动量守恒，。

This paper describes a conventional network charge conservation and flux conservation conditions,and conservation and non-conservation of the use of the two 0-equivalent circuit model are also analysised.

本文导出了常规网络电荷守恒和磁链守恒的条件，并就守恒与不守恒两种情况利用0-等效电路的模型进行过程分析，最后证明了不守恒的差额恰好满足更大系统的守恒。

Chapter two proposes the unified form of Hojman"s conservation law and Lutzky"s conservation law. Firstly, the author introduces the general Lie group of transformations that the variations of both the time and the generalized coordinates are considered, derives the determining equation of Lie symmetry for the system, presents a new conservation law, which contains the Hojman"s and the Lutzky"s conservation law as two special cases, and obtains a condition to exclude trivial Hojmans conserved quantities.

第二章，Hojman定理和Lutzky定理的统一形式：首先，引入一般意义下的Lie变换群(即位型变量q_s和时间变量t同时变换)，给出系统的Lie对称性确定方程，提出一个新的守恒律，Hojman定理与Lutzky定理则分别是这个新守恒律在两个特殊情况下的推论，导出一个可排除平凡Hojman守恒量的定理，并分别讨论了Birkhoff系统和非完整系统的Lie对称性和Hojman守恒量，最后，讨论了Hamilton系统的梅对称性与Lie对称性的关系，给出了由梅对称性求Hojman守恒量的方法。

P12 The find of Compton effect and the coherence of theoretical analysy and experimental result not only convincingly veified that the photon theory was right,but also veified that the conservation of energy and the law of conservation particles would similarly observe the law of conservation of energy and the law of conservation of momentum with vigour when they act on each other

康普顿效应的发现，以及理论分析和实验结果的一致，不仅有力地证实了光子学说的正确性，同时也证实了在微观粒子的相互作用过程中，同样严格地遵守能量守恒定律和动量守恒定律。

Article 33 The State coordinates efforts for scientific research of key energy conservation projects and demonstration projects of energy conservation and recommends energy conservation projects for dissemination, providing guidance for enterprises, institutions and individuals to employ advanced techniques, skills, equipment and material for energy conservation.

第三十三条国家组织实施重大节能科研项目、节能示范工程，提出节能推广项目，引导企业事业单位和个人采用先进的节能工艺、技术、设备和材料。

In "the National Project on Wildlife Protection and Nature Reserve Construction" carried out by the State Administration of Forestry of China, pheasants are among the 15 groups of animals and plants which have high priority for conservation. In this paper, the species diversity, endemic species, and distribution patterns of Galliformes in China are introduced, and the current status and threats to this group of birds are summarized. Base on achievements made in in situ protection, ex situ conservation and scientific research, the main problems existing in conservation practice are discussed, and a conservation strategy for Chinese Galliformes is suggested.

本文结合国家林业局&十五&期间将要实施的《全国野生动植物及自然保护区建设工程总体规划》，对我国鸡形目鸟类的多样性、特有性和分布特点进行了阐述，对该类群的濒危状况和致危因素进行了分析，从就地保护、易地保护以及科学研究三个方面介绍了我国在该类群研究与保护方面所取得的成就，探讨了目前保护管理工作中所存在的问题并提出了相应的保护对策。

The systematic experiment of conservation tillage in two crops a year region has been designed and performed according to the maximum benefit of resources, environment and production, based on the research achievements of conservation tillage technology in one crop a year regions. Series experiments and embedded theory study have been conducted for estimating the feasibility of water saving in conservation tillage and guiding irrigation. At the same time, the evaporations of soil water under the condition of conservation tillages are measured and its mathematic model is studied and significant research achievements have been obtained.

中文文摘：为研究一年两熟地区实行全程保护性耕作技术体系的可行性，选择出适宜该地区一年两熟的保护性耕作技术体系和提供指导灌溉用水的理论依据，论文在一年一熟地区保护性耕作体系研究成果的基础上，以一年两熟地区全程保护性耕作体系的资源环境效益和生产效益为依据，进行了深入的理论分析和田间试验研究；同时进行了保护性耕作条件下，土壤水分棵间蒸发的专项试验及模型研究，取得了重要的研究进展。

The systematic experiment of conservation tillage in two crops a year region has been designed and performed according to the maximum benefit of resources, environment and production, based on the research achievements of conservation tillage technology in one crop a year regions. Series experiments and embedded theory study have been conducted for estimating the feasibility of water saving in conservation tillage and guiding irrigation. At the same time, the evaporations of soil water under the condition of conservation tillages are measured and its mathematic model is studied and significant research achievements have been obtained.

为研究一年两熟地区实行全程保护性耕作技术体系的可行性，选择出适宜该地区一年两熟的保护性耕作技术体系和提供指导灌溉用水的理论依据，论文在一年一熟地区保护性耕作体系研究成果的基础上，以一年两熟地区全程保护性耕作体系的资源环境效益和生产效益为依据，进行了深入的理论分析和田间试验研究；同时进行了保护性耕作条件下，土壤水分棵间蒸发的专项试验及模型研究，取得了重要的研究进展。

Recently, as preservation of cultural property is gaining more and more public attention, the important role of conservation treatment on Paintings of Traditional Buildings is accepted. But researches and studies on the related techniques and methods of conservation for Paintings on Traditional Buildings remain deficient in Taiwan. In addition, records and descriptions in projects adapting conservation treatment are poorly listed. Lacking both academic and empirical references, it often misleads staff in the projects to underestimate importance of conscientious and careful training to do conservation. One problem is the belief to easily replace conservators with painting craftsmen to work on conservation treatments.

然而，在文化资产保存观念渐为大众所关心与接受下，彩画修护逐渐为传统建筑修护工程所重视，但国内关於彩画修护技术、方法的论述几乎没有，尤其是近年来在少数采行修复方法的彩画修护案例中，对修复部分的相关纪录与描述更是寥落晨星，以致许多参与修护工程的相关人员对彩画修护方法有极大的误解，误以为不需经过特殊、严谨的「修复」训练，即能以一般传统建筑彩画的施作工法来从事「修复」工作，又或误以为修复师可以替代彩画匠师来进行传统建筑彩画的施作……。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。