查询词典 conservation

Shifting migratory routes for endangered species such as the leatherback turtle could complicate what are already tricky conservation challenges for wandering sea creatures, says Lee Hannah of Conservation International in Washington, D.C.:"They re going to start turning up in places where there may not be conservation measures in place."

濒危物种迁徙路线的改变使已有的保护措施更加复杂化例如革龟，这些保护措施本身对于四处游走的海洋生物已是一个相当大的挑战，位于华盛顿的国际环保组织的李汉娜说，"这些物种开始在没有采取保护措施的海域出没。"

Conservation of mass.conservation of moment muni and conservation of energy are basic regularity obeyed by all movement in nature.For a certain problem in natrue .if we quantify the corresponding conversation law . we can deduce partial differential equation reflecting this problem .and every differential equation reflecting a special physical phenomenon on certain codition.

质量守恒、动量守恒和能量守恒是自然界一切运动所遵循的基本规律，对于自然界的某一特定问题，如果把相应的守恒律数量化，就导出刻划这个问题的微分方程，每一个微分方程都在一定条件下刻划了某一特定的物理现象。

The Guangzhou Jin Bao Trade Co., Ltd. is a professional in the business of automobile maintenance supplies trade companies, is the world famous automobile producers - the conservation of Japan westernize Research Corporation Commissioner in China, Hong Kong and Macao regions of vehicle maintenance products easy Exclusive agents; agents also world-renowned multi-brand car for conservation: soft, this is dedicated to domestic owners of vehicles with world-class conservation goods, to let the owners of the car and get the best maintenance.

广州劲之保贸易有限公司是一家专业从事经营汽车养护用品的贸易型公司，是全球知名汽车养护品生产商---日本关西化研株式会社在中国、香港、澳门地区的汽车保养易系列产品独家代理商；同时还代理多世界知名汽车养护品品牌：soft等，本公司致力于为国内车主提供世界一流的汽车养护品，让广大车主的爱车得到最好的保养。

Pearlite inflation electric stove environmental protection energy conservation, and applies the microcomputer automation inflation agglutination process the pearlite inflation electric stove, can the completely automatic produce the upscale foramen obturatum inflated pearlite product, applies the pearlite keeps warm Sha Jiang to construct the energy conservation, the heat preservation building materials, the dalle, the heat insulation fire protection, the light quality energy conservation refractory brick and so on wide realm.

珍珠岩膨胀电炉环保节能，并且将微电脑自动化膨胀烧结过程应用到珍珠岩膨胀电炉，能全自动生产出高档闭孔膨胀珍珠岩制品，将珍珠岩应用到保温沙浆建筑节能、保温建材、装饰板、隔热防火、轻质节能耐火砖等广泛领域。

Electric furance environmental protection energy conservation, and applies the microcomputer automation inflation agglutination process the pearlite inflation electric furance, can the completely automatic produce the upscale foramen obturatum inflated pearlite product, applies the pearlite keeps warmSha Jiang to construct the energy conservation, the heat preservation building materials, the dalle, the heat insulation fire protection, the light quality energy conservation refractory brick and so on wide realm.

珍珠岩膨胀电炉环保节能，并且将微电脑自动化膨胀烧结过程应用到珍珠岩膨胀电炉，能全自动生产出高档闭孔膨胀珍珠岩制品，将珍珠岩应用到保温沙浆建筑节能、保温建材、装饰板、隔热防火、轻质节能耐火砖等广泛领域。

In this paper, taking one 1900t/h supercritical pressure once—through boiler installed in East boiler company as subject investigated, analyzing the structure and characteristic of unit, from the mechanism of units, based on the law of quality conservation, energy conservation and momentum conservation, having Lagrange fluid particle tracing idea in hydrodynamics field application in analyzing of unit operational characteristic, author build up the nonlinear distributed parameter general dynamic mathematical model of single-phase heating surface or diphase heating surface in the steam-water system for supercritical pressure once—through boiler, which is suitable numerical calculation and simulation for large scale disturbance and full working conditions change, and enough materializing distributed characteristic of thermodynamic parameter in process and time lag characteristic of energy transportation in tache. The transient responses curve of the system main variables under several disturbance are computed by Computer Simulation for the model, and theoretical analysis shows that the simulation results are reasonable.

本文以东方锅炉集团公司的一台1900 t /h超临界压力直流锅炉为研究对象，在分析机组结构和特性的基础上，从机组的工作机理出发，以质量、能量、动量守恒定律为依据，将流体力学领域中的Lagrange流体质点追踪思想用于机组运行特性的分析上，建立了适用于超临界压力直流锅炉汽水系统单相、双相受热面的非线性分布参数通用动态数学模型，该模型适合于大扰动全工况变化的数值仿真计算，充分体现了过程热力参数的分布特性和环节中能量输送过程的时滞特性，并对模型通过计算机仿真得出各种扰动下系统主要变量的响应曲线，从理论上分析了仿真结果的合理性。

The nonlinear hyperbolic conservation laws of the transient flow of the media in gas pipeline are hard to he solved, so, the control conservation laws are constituted of mass, momentum arid energy conservation laws, TVD/Godunov hydrid algorithm is used to simulate the transient flow in gas pipeline, and the traditional splitting approach processing nonlinear convection in momentum equation is dismissed ,the convection tern; is directly processed, in the way, the stablization of the algorithm and emulating accuracy of the transient flow are greatly improved.

针对管道中介质瞬变流动的非线性偏微分方程组难以解析求解的问题，由质量、动量、能量三个偏微分方程构成的控制方程组，应用TVD/Godunov混合算法数值模拟天然气管道中气体的瞬变流动，摒弃了传统的差分方法时动量方程非线性时流项的线性化处理，而直接处理非线性对流项，从而大大提高了算法的稳定性和管道瞬变流动的仿真精度。

Quan Zhou City stands on face outside administration service centre , adopt the energy conservation way cutting off the bridge heat insulation aluminium product and Low-E medium altitude stalinite union, main the method being under construction and technology under the control of measure introducing that energy conservation way with a view of project reality, indicate the main body of a book owing method energy conservation effect the obvious characteristic.

泉州市行政管理服务中心外立面，采用断桥隔热铝材同Low-E中空钢化玻璃结合的节能方式，本文结合工程实际介绍该节能方式的主要施工方法和技术控制措施，表明该方法节能效果明显的特点。

Firstly, this article summarizes energy conservation and emission reduction and the related theory, then takes the current energy consumption and pollution status of China's economic development as the starting point, analyzes the situation of energy conservation and emission reduction, poses the problem of energy conservation and emission reduction in our country.

本文首先概述了节能减排及相关理论，从我国经济发展的能耗现状和污染现状出发，分析我国节能减排的形势，提出了我国节能减排面临的问题，其次分析节能减排与企业竞争力的关系，以及节能减排规制政策下企业面临的挑战和机遇，最后对企业对策进行深入分析。

From the Arctic to the Cape - the Wings Over Wetlands African-Eurasian GEF Flyways Project is the largest international wetland and waterbird conservation initiative ever to take place in the African-Eurasian region. This 12 million dollar project aims to conserve the critical areas needed by these migratory birds across Africa, Europe, the Middle East, Central Asia, Greenland and the Canadian Archipelago. Through its unique flyway-scale conservation approach, Wings Over Wetlands will not only enhance international conservation efforts to improve the conditions and management of waterbirds and key wetland sites in Africa and Eurasia, it will also create a new web-based information portal that will be an improved source of reliable information on migratory flight paths across the continents.

从北冰洋到南非海角，&飞跃湿地的翅膀&非洲－亚欧大陆GEF迁徙水鸟项目是目前最大的一个国际性湿地和水鸟保护项目，这个项目投资1200万美元，目标是保护迁徙水鸟需要的关键性地区，这些地区囊括了非洲，欧洲，中东，中亚，格陵兰岛以及加拿大群岛，通过这个独一无二水鸟迁徙路线保护项目，WOW将不仅加强提高湿地环境和管理以及在欧洲，非洲关键性湿地的国际性保护，并将建立一个新的信息网络，成为经过这些地区的迁徙鸟类可靠的信息的最新资料库。

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。