煤是由埋在地底的森林经过长期而缓慢的化学变化过程而形成的。
Coal was formed out of dead forests by a long slow process of chemical change.
在这门学科中，厨师们利用他们对烹饪过程中发生的化学变化的知识来产生超越“普通”的饮食乐趣。
In this discipline, chefs use their knowledge of the chemical changes that take place during cooking to produce eating pleasures that go beyond the "ordinary".
它们被厚厚的泥沙沉积物所覆盖，并由于化学变化、压力和温度的作用过程，在漫长的时间中变成了我们所知道的石油。
They were covered with huge deposits of mud; and by processes of chemistry, pressure and temperature were changed through long ages into what we know as oil.
热塑塑料可通过加热和加压成形和再成形，而热固塑料却由于在硬化过程中发生了化学变化而不能再成形。
Thermoplastics can be shaped and reshaped by heat and pressure but thermosets cannot be reshaped because they undergo chemical changes as they harden.
从以上所述可看出油脂氧化是一个极其复杂的过程，它涉及到很多反应，引起大量的物理化学变化。
It is obvious from the preceding discussion that lipid oxidation is an exceedingly complex process involving numerous reactions that cause a variety of chemical and physical changes.
介绍了刨花板热压过程中板坯的物理变化和化学变化，分析了热压温度、时间、压力在热压过程中的作用，阐明了热压工艺是刨花板生产中产品质量保证的重要环节。
This paper introduces the physical and chemical change of particleboard in the course of hot pressing and analyses the effect of temperature, heating time and pressure.
以通用有限元软件包为基础，开发了能够模拟复合材料整个制造过程中复杂物理化学变化的软件。
The finite element analysis software, which was based on the general finite element software package, was developed for numerical simulation of the entire composite cure process.
展示了磷酸法制取活性炭的炭活化过程的热化学变化动态，从热分析上探讨其热解历程。
This method revealed dynamically the charring and activation processes for producing active carbon by phosphoric acid method, and investigated the mechanism of pyrolysis.
通过室内模拟堆制和同位素交叉标记，研究了以稻草和禽畜粪为主体材料的堆肥制作过程中的生物化学变化特征。
Simulated composting was carried out to study the changes of biochemistry and chemical characteristics of the organic manure compost using labelled organic material and inorganic nitrogen fertilizer.
结论该方法采用全物理过程，无任何化学变化及污染，是提取玉米须黄酮类物质的有效途径。
This method is purely physical process, and has no any chemical change and pollution. It is an ideal way to withdraw the flavanone of corn silk.
结果表明，反应气流的流向以及催化剂在反应过程中发生的物理和化学变化是导致碳微线圈形态变化的两个重要原因。
The results of SEM, TEM, SAED and XRD show that the direction of gas current and the physical or chemical changes of catalyst grain cause the morphology variety of carbon micro-coils.
用红外光谱法研究了四种热固性酚醛树脂在固化过程中的化学变化。
The chemical change of four resole type phenol-formaldehyde resins in curing process was studied by infra-red spectroscopy.
高炉是一个包括复杂物理化学变化和传输过程的高温反应器。
Blast furnace is a high temperature reactor which includes complex physical chemistry reaction and transportation process.
本文对木炭干馏的方法及木炭干馏过程中的物理化学变化，尤其是气体成分的变化情况进行了研究。
This research dealt with the method of dry distillation of charcoal and the physicochemical changes, especially the changes ot the gas composition during dry distillation.
用无压浸渍法制造金刚石工具，在烧结过程中要发生一系列物理、化学变化。
A series of physical and chemical reactions will take place during the process of sintering when diamond tools are manufactured with soaking method without pressure.
由试验可知，原状黄土在湿陷过程中发生了某些物理化学变化，大孔隙对黄土的湿陷没有必然的贡献。
It is found that some physical and chemical changes occur in the collapse process and the big pores in loess do not always contribute to collapsibility.
结合DTA - TG曲线，分析排胶过程中物理化学变化，并比较几种成型法坯体的排胶工艺。
According to curve of DTA-TG, physical and chemical reactions under binder removal process were analyzed, meanwhile several binder removal processes were compared.
采用DSC、TGA、IR及PGC等方法对AN-VDC共聚体纤维在空气中受热过程中发生的化学变化进行分析。
The chemical reactions which toke place while AN-VDC copolymer was heated in air were studied with the help of DSC, TGA, IR , PGC.
目的：观察腺垂体fsh细胞在大鼠实验性腺胃癌过程中的免疫组织化学变化。
Objective: Immunohistochemical changes of FSH positive cell in pars distalis of pituitary gland were observed in the course of inducing rat experimental gastric carcinoma.
沉缸酒在发酵过程中，发生了一系列复杂的物理化学变化，如氧化、还原、酯化、缔合等，同时伴随着色泽、成分的变化及分子缔合作用。
During the brewing process of catalyzed wine, a series of complicated physical and chemical reactions such as oxidation, reduction, etherification and association occur.
但是，很多有效成分会在烹调过程中发生化学变化而降低，甚至是丧失其功效。
However, a lot of valid composition will lose their effect in cook process.
电缆运行过程中，在水分和电场的共同作用下发生物理化学变化，形成水树枝。
Water tree may be formed in the insulation due to physicochemical changes caused by the combined effect of water and intense electrical field.
物质发生物理变化的过程中一定发生了化学变化。
Physical changes occurring substances in the course of a certain chemical changes have taken place.
着重研究了粉煤灰陶瓷的显微结构，分析了瓷体在烧成过程中的物理化学变化，探讨了粉煤灰陶瓷的低温烧成机制。
This paper emphasized on the investigation of the ceramics microstrutrue, the sintering mechanism and physics-chemical change, which occurred duringthd heating process.
稻谷在成熟过程中，籽粒内部进行着复杂的生物化学变化的同时，籽粒的干物质逐渐积累和含水率逐渐减小。
There were complicated biochemical changes in rice grains, and dry matter of rice was accumulated and moisture content of rice decreased gradually during rice maturity.
热塑塑料可通过加热和加压成形和再成形，而热固塑料却由于在硬化过程中发生了化学变化而不能再成形。
Thermoplastics: Materials which have the property of softening repeatedly on the application of heat, and of hardening again on cooling. Molecules of thermoplastics take the form of long chains.
具体研究方向为：乳粉、乳清、干酪、发酵乳制品加工工艺以及加工过程中的营养及化学变化机理研究、植物蛋白产品开发和乳源生物活性物质制备。
The specific research interests include: milk powder, whey, cheese, dairy processing technology and changing mechanism during processing, development of vegetable protein products.
高炉冶炼是在高温下发生的包含许多物理、化学变化传输过程的一个复杂过程。
Smelting in blast furnace is a complicated process under temperature including a lot of physical change , chemical change and transmission process .
高炉冶炼是在高温下发生的包含许多物理、化学变化传输过程的一个复杂过程。
Smelting in blast furnace is a complicated process under temperature including a lot of physical change , chemical change and transmission process .
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