1.
It was a period of substantial change.
这是一个本质变化的时期。
2.
An alteration or change, as in nature, form, or quality.
转变转变或者变化，比如在本质、形式或者质量上的变化
3.
undergo a change; become different in essence; losing one's or its original nature.
经过改变；在本质上的变化；改变原来的属性。
4.
On Development of Nature of Teaching Through Changes of Key Teaching Elements;
从教学要素的变化看教学本质的演进
5.
The Root Cause and Essence of the New Changes of Contemporary Capitalism;
当代资本主义新变化的原因及其实质
6.
Research on Cost Optimization for Centralized Purchasing Multi-deteriorating Items;
多种易变质性物品集中采购成本优化
7.
The Changes of Japanese Carbide Cutting Tools in 2003;
2003年日本硬质合金刀具的变化
8.
New Changes of the Contemporary Capitalism and Thinking about its Essence;
关于当代资本主义的新变化及其本质的思考
9.
The property itself-the hydraulic conductivity-does not change.
它本身的性质，即水力传导性并没有发生变化。
10.
if the legal nature of the Patent concerned in the Contract has changed
如果本合同涉及的专利的法律性质发生了变化
11.
Entities, as in nature in the form of ever-changing, invaluable.
实体，就如本质的形式，千变万化，不可胜数。
12.
Intrinsical Safety Behavior & Design Considerations of Buck-Boost Converter;
Buck-Boost变换器的本质安全特性分析及优化设计
13.
Intrinsic Safe Behaviro & Design Considerations of Buck Converter & Boost Converter;
Buck及boost变换器的本质安全特性及优化设计
14.
Cost-benefit Analysis of Changes of Customer Needs Based on House of Quality;
基于质量屋的顾客需求变化的成本效益分析
15.
Transformation of Chemistry Teachers from Generality to Research:A Requirement of Quality Education;
素质教育要求化学教师从基本型向研究型转变
16.
Morphologic change of the cells related to dentinification followed occlusion trauma
咬合创伤后牙本质形成相关细胞的形态学变化
17.
Quality change of oolong tea during Rhizopus Japonicus Vuillemin fermentation
日本根霉发酵乌龙茶过程中茶叶品质的变化
18.
The evolution of educational ontology and the creation of the proposition on quality education;
教育本体论的嬗变与素质 教育本体论命题的创化