The chemical process by means of which a change in physical condition , as in pressure or temperature , or the action of a solvent causes a molecule to split into simpler groups of atoms , single atoms , or ions 离解（作用）在物理状态下，如在压力或温度下的变化，或在溶剂的作用下，使分子分离为更简单的一组原子、单原子或离子的化学过程
Based on analysis of physical and chemical phenomena related with hot - spots formation of crack friction , the meso - scale hotspot model is put forward , control equations for hot - spot formation and development are derived 对与裂纹摩擦热点形成相关的物理、化学过程进行分析研究,提出了裂纹摩擦热点细观模型,推导建立了热点形成和发展控制方程。
Abstract : analysis is made on types and performances of protective atmospheres of the steel tube heat treatment furnace with protective atmosphere , and also dynamic analysis on the non - oxidation equilibrium conditions of the chemical process of atmosphere of the said furnace is made 文摘:分析了钢管保护气氛热处理炉的保护气氛类型及性能，对钢管保护气氛热处理炉内气氛的化学过程动态分析了无氧化的平衡条件。
Such variatio in size ， shape ， chemistry ， conduction eed ， excitation threshold ， and the like as had been demo trated in nerve cells remained negligible in significance for any po ible correlation with the manifold dime io of mental experience 类似于这些已经被在神经细胞中证明的在大孝形状、化学过程、产生的速度、兴奋阈值及其类似的方面上所发生变化，当他们被用来与大脑的体验以可能的方式联系起来的时候，他们在重要性上仍然是微不足道的。
Such variations in size , shape , chemistry , conduction speed , excitation threshold , and the like as had been demonstrated in nerve cells remained negligible in significance for any possible correlation with the manifold dimensions of mental experience 译文:类似于这些已经被在神经细胞中证明的在大小,形状,化学过程,产生的速度,兴奋阈值及其类似的方面上所发生变化,当他们被用来与大脑的体验以可能的方式联系起来的时候,他们在重要性上仍然是微不足道的
The complex of physical and chemical processes occurring within a living cell or organism that are necessary for the maintenance of life . in metabolism some substances are broken down to yield energy for vital processes while other substances , necessary for life , are synthesized 新陈代谢维持生命所必需的，发生于存活细胞中或生物体中的物理和化学过程的总和。在此过程中，一些物质被分解从而为生命过程提供能量，而另一些维持生命所必需的物质则被合成
Such variations in size ， shape ， chemistry ， conduction speed ， excitation threshold ， and the like as had been demonstrated in nerve cells remained negligible in significance for any possible correlation with the manifold dimensions of mental experience 类似于这些已经被在神经细胞中证明的在大小、形状、化学过程、产生的速度、兴奋阈值及其类似的方面上所发生变化，当他们被用来与大脑的体验以可能的方式联系起来的时候，他们在重要性上仍然是微不足道的。
2 the design and manufacture of focs instrument system the foundation of commercial fiber optical chemical technique is to manufacture a fiber optical chemical instrument system . an instrument is assembled with xenon light as the source , bifurcate quartz fiber as the carrier for light , high precision photomultiplier tube for the conversion of light signal to electron signal and the 16 - digit multi - channels analog - to - digital card for collection of data 生产人作者选择氖灯为光源、设计聚焦系统，以石英分支光纤作为传输光信号介质，高精度光电倍增管检测， 16位多道数据采集卡为a d转换，采用visualbasic编写windows平台操作软件，菜单提示，窗口人机对话，研制成功单通道光纤化学过程传感仪器系统。
Simultaneously , it is advanced that the coupled relationship between the accumulation of modern sedimentary phosphorus in the eastern coast of china and global changes have a special significance in the researches on the global changes of middle - short time scale 这些沉积物记录了地球系统中生物、物理、化学过程的相互作用，以及自然因素和人为因素相互作用的信息，为建立古气候变化的时间系列，估计气候变化的幅度，了解气候变化的周期性与突变性，探讨气候变化的原因，从而为推断未来气候变化的趋势提供了重要的背景资料。
Weather modification refers to efforts aimed at rain or snow enhancement , hail suppression , rain suppression , fog dispersal , frost prevention by exerting , under appropriate conditions , artificial influence on local atmospheric physical and chemical processes through scientific and technological means , in order to avert or mitigate meteorological disasters and rationally exploit climatic resources 五)人工影响天气，是指为避免或者减轻气象灾害，合理利用气候资源，在适当条件下通过科技手段对局部大气的物理、化学过程进行人工影响，实现增雨雪、防雹、消雨、消雾、防霜等目的的活动。
