Both chemists were sufficiently farsighted to leave gaps where their analyses of periodic physical and chemical properties indicated that new elements should be located.
这两位化学家都非常有远见，他们对周期性的物理性质和化学性质进行分析，并在预示应该出现新元素的地方留下了空位。
Physical and chemical properties are listed in Table 1.
物理和化学性质列于表1。
Silver has its own physical and chemical properties as distinct from gold.
与金不同，银有自己的物理和化学性质。
Properties are classified into two main groups, physical and chemical properties.
材料特性可分为物理特性和化学特性两大类。
The physical and chemical properties of the stainless steel are dealt with in this article.
本文论及了不锈钢材料的物理化学性质。
The preparation and physical and chemical properties of chitosan and its derivatives are introduced.
简要介绍了壳聚糖及其衍生物的制备方法和物化性质。
The physical and chemical properties of nanomaterials are relevant to their morphology and dimension.
纳米材料的物理和化学性质与它的基本单元的形状和大小密切相关…
In the work, we have given some physical and chemical properties and technological data of the glass.
在试工作中我们绐出了关于这个玻璃的一些物理和化学性质和工艺数据。
Physical and chemical properties of iron ore powder and carbon powder with mechanical impact are studied.
研究了机械力作用下铁矿粉与碳粉的物理化学性能的变化规律。
The cause of dirt and its physical and chemical properties as well as the cleaning method are introduced.
针对建筑外墙瓷砖污垢产生的原因及物理化学性质，介绍了一种化学清洗该污垢的方法。
Al - alloys have special requirements on MIG welding due to their unique physical and chemical properties.
铝合金因其独特的物理、化学性能对mig焊有特殊的要求。
The physical and chemical properties, mechanical properties and fire-retardant properties were also given.
列举了涂料的理化性能、力学性能和耐火性能的检测结果。
Oxidized wax is modified by amidation reaction to produce acylamide with better physical and chemical properties.
氧化蜡经过胺改性可以得到具有更佳物化性能的脂肪酸酰胺。
Because of its special physical and chemical properties, amylose starch is a kind of high additional value starch.
直链淀粉由于其独特的理化性质，是一种高附加值的玉米淀粉。
Rare earth elements are extensively adopted in materials industry for their peculiar physical and chemical properties.
稀土元素因其独特的理化性能而被广泛应用于材料科学领域。
Besides, the two systems were significantly different in soil nutrient content and soil physical and chemical properties.
而且两者耕层土壤的养分含量和理化性质等指标也有明显差异。
The structural characteristics of chitosan make it have particular physical and chemical properties and biological activity.
壳聚糖的结构特征使其具有了独特的物理化学性质和生物活性。
The main conclusions can be drawn as follows: (1) Intercropping could obviously improve soil physical and chemical properties.
主要结论如下：(1)林粮间作能较好地改善土壤物理和化学性质。
Chitosan has been widely applied on drug preparations owing to its good biologic and particular physical and chemical properties.
壳聚糖以其优良的理化性质和生物特性在药物制剂中已得到广泛的应用。
In this paper, based on the physical and chemical properties, the general adsorption mechanism of activated carbon is introduced.
本文从活性炭表面的物理性质和化学性质，介绍了活性炭吸附的一般机理。
The physical and chemical properties of colloidal and subsieved particles often depend upon their particle size and its distribution.
胶体颗粒和超筛分颗粒的物理和化学性能时常与其颗粒的大小和分布有关。
Conformance to a particular material classification in this standard requires meeting a number of minimum physical and chemical properties.
要符合这个标准下的特殊材料分类，需要满足一系列最低物理和化学性能要求。
Various technologies were compared and analyzed by the working principle and the physical and chemical properties of the obtained thin films.
从工作原理和获得薄膜的物理化学性能等各方面，对这些技术进行了分析和比较。
From the following product main performance comparison, can according to the different physical and chemical properties of applications were.
从以下产品主要性能对照，就可以根据不同理化性能分别加以应用。
Many samples are then taken, and sent to a laboratory to be thoroughly tested, and their physical and chemical properties are assessed in detail.
然后采集多种样本并送往实验室彻底测试并详细评估样本的物理和化学特性。
Second, sorting, is to have dissociated out of their physical and chemical properties of mineral particles between different product sub-elected.
二是分选，就是将已解离出来的矿物颗粒按其物理化学性质差异分选为不同的产品。
The ability of the coating to maintain uniform physical and chemical properties subject to the manufacture 'rs specification (time and temperature).
在产品说明书中的保持涂料的物理和化学性能的能力(温度和时间)。
This paper discusses the advantages and disadvantages of LPG as engine fuel from its physical and chemical properties and combustion characteristics.
本文从液化石油气（LPG）的理化特性和燃烧特点出发，阐述了LPG作为发动机燃料的优缺点。
The liquid synthesis of nanocrystals titania at low temperature, due to avoiding the sintering process, brings superior physical and chemical properties.
低温液相合成晶态纳米二氧化钛由于避免了高温煅烧过程，可望赋予其更优越的特性。
The so-called active components, mainly composed of semiconductor and display, refer to those whose physical and chemical properties change when electrified.
所谓主动元件是指通电后物理或者化学特性发生变化的元件，主动元件主要是半导体元件和显示屏。
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