" physics and chemistry - you can t do them without laboratory study ; and you ll find algebra and geometry almost hopeless with instruction . you need the skilled teachers , the specialists in the art of imparting knowledge . “物理和化学没有实验课你是学不会的,你还会发现代数和几何若是不听课也学不会,你需要的是熟练的教师,传授知识的专家。 ”
This course covers sediments in the rock cycle , production of sediments at the earth ' s surface , physics and chemistry of sedimentary materials , and scale and geometry of near - surface sedimentary bodies , including aquifers 本课程涉及到岩石循环中的沉积物,在地球表面沉积物的产生,沉积物的物理和化学性质,和近地表沉积体的规模和形状,包括含水层。
Causation about interface debond are composed of two aspect of physics and chemistry , the main physical reasons are stress intensity and material damage near motor interface created under various work loads 导致固体火箭发动机界面脱粘的原因包含物理的和化学的两个方面,在各种工况载荷作用下发动机界面附近的应力集中及材料损伤是产生脱粘的主要物理原因。
The material would be an asset to industry and might even help shed light on the physics of elasticity , wrote philippe cordier and colleagues at the industrial physics and chemistry higher educational institution in paris 巴黎“工业物理与化学高等教育研究所”的菲利浦?科迪亚及其同事写道,这种材料在工业领域大有用处,而且它甚至能为弹性物理学提供新的信息。
The sort and stabilized of subgrade filling all over the word are discussed . on the base of analyses of developed and present for improved soil , the theory and character of each improved soil are studied form physics and chemistry 在分析路基填料改良的发展与现状的基础上,从物理化学方而研究了各改良土强度形成机理及特点,并分析了土的孔隙液成分对改良土的影响。
According to the reasonable modeling of the material ' s microstructure , physics and chemistry methods are more and more frequently used in the area of material analyses , and become the most important methods in the material research and design 摘要通过对材料微结构的合理建模,将物理和化学的计算方法应用在材料学领域,是近年来非常重要的材料研究设计和模拟的手段。
It is the underlying mathematical framework of many fields of physics and chemistry , including condensed matter physics , atomic physics , molecular physics , computational chemistry , quantum chemistry , particle physics , and nuclear physics 它是许多物理学和化学领域的根本数学框架,包括浓缩物质物理学、原子物理学、分子物理学、计算化学、量子化学、粒子物理学和核子物理学。
On the other hand , because of the changing of the physics and chemistry for outside environment and other unmeasurable disturbances , the model under which the controller is designed is usually different to the real plant owing to model reduction 另一方面,控制设计所基于的数学模型一般仅仅是被控对象的近似,所以在控制系统中要想完全准确地建立被控对象的数学模型几乎是不可能的。
The group is intending to build 43 , 600 square meters workshop and purchase intermediate frequency electric stove , driving , froth shaper , spongy machine , centrifugal casting machine , ditch granulated substance machine , liquid machine , physics and chemistry examination machine , etc 新建厂房43600平方米,购置中频电炉、行车、泡沫成型机、发泡机、离心浇注机、沟砂机、料浆机、理化检测等设备120台(套) 。
A new process for synthesis of 7 - dhc based on cholesterol and the innovation technology for synthesis of vitamin d3 by photochemical reaction have been developed by the technical institute of physics and chemistry of the chinese academy of sciences , and the process has been industrialized 中国科学院理化技术研究所开发了一条从胆固醇合成7 - dhc的新路线,提出了一条光化学合成维生素d3的创新技术路线,并已经转让实施。