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- population chemical character 居群的化学性状
- The chemical character and surface profile of the polymer film was studied using FTIR and SEM. 利用红外光谱法(FTIR)、扫描电镜(SEM)对该聚合膜进行了化学成分和表面形貌的分析。
- Conclusion There were relationship between the physical chemical character and the lag time of PRT. 结论：脉冲控释片的理化性质与其脉冲释药机理有一定相关性。
- Since its chemical character is very active, Mg alloy is prone to oxidation and burning, which makes it impossible to be melted and cast in air. 但由于镁的化学性质活泼，非常容易氧化、燃烧，导致镁合金无法在大气条件下直接进行熔炼和浇注。
- No matter how intimately you know the chemical character of H2O, it does not prepare you for the character of a whirlpool. 不论你多么确切地了解H2O（水的分子式）的化学特征，它都不会告诉你任何有关漩涡的特征。
- Magnesium oxide as a bonding, provide a unique chemical character with only little temperature occurred during grinding, can reduce the deformation of work piece. 以氧化镁为结合剂,因具有独特化学性质研磨时发热极少,可降低研磨时工作物变形。
- Because of similarity of chemical character,Zn and Cd give birth to accompany always,go to the plant by soil,then endanger the human health through the food chain. 由于化学性质相似,锌、镉在自然界总是伴生、伴存而造成伴随危害,经土壤到植物,继而通过食物链危害人类健康。
- Methods: Compare study develops between hogwash oil and edible oil and wants to find especial,discriminating,physical and chemical character in laboratory. 方法:将潲水油与正品食用油进行对照研究,寻找潲水油特有的可在实验室进行检测的理化指标。
- In this paper, based on the general physical and chemical character of MTG, several satisfied methods was decided after studied on using high centrifugation, ammonium sulfate precipitation, alcohol precipitation, acetone precipitation to separation MTG. 本文根据微生物谷胺酰胺转胺酶的基本理化性质，先后采用了高速离心、硫酸铵盐析沉淀、乙醇沉淀、丙酮沉淀等方法，对微生物谷胺酰胺转胺酶的初步提纯工艺进行了研究讨论，确定了该酶不同用途的初提方法，并为该酶的进一步纯化做好准备。
- Sewage sludge contains abundant plant nutrition, which could improve the physical and chemical character of the soil while applying sewage sludge into the crop land and increase the yields. 城市污泥中含有大量的植物营养元素,其土地利用能改善土壤的理化性质,提高作物产量,减少污泥对环境的二次污染,从而实现污泥的资源化、无害化、稳定化和减量化处置目标。
- The present paper reports a kind of bioceramic that is of higher intensity,hardness and better toughness,with stable chemical character,better compatibility and affinity with bone tissue. 本文报道了一种在保持较高强度和硬度同时,具有较好韧性的生物陶瓷,且该生物陶瓷化学性能稳定,生物相溶性好,与骨组织有较好的亲和性。
- Effect of vinegar pickling on physical and chemical characters of Lateolabrax japonicus were investigated. 研究了醋渍处理对养殖鲈鱼理化性质的影响及变化规律。
- This city has a population of more than 1,000,000. 这个城市人口超过一百万。
- In this report, the composition of amino acid, oil and its physical and chemical characters in mulberry seeds were determined and analyzed. 摘要测定了桑籽中氨基酸的组成和桑籽油脂肪酸的组分及理化特性指标。
- A desert has no settled population. 沙漠没有固定的居民。
- Camellia oleifera seed oil has some similar physical and chemical characters with the olive oil,so it's called “Eastern Olive Oil”. 茶油具有“东方橄榄油”的美称,其物理化学性质与橄榄油相似。
- The article introduces the specifications,physical and chemical characters of aquafortis,especially its commercial dilution technology. 介绍了浓硝酸稀释工业化的工艺方法、设备材料选择及装置运行情况。
- There was a steady increase in population. 人口在不断增长中。
- What is the population of this country? 这个国家的人口是多少？
- The results showed that autumn ploughing was more beneficial to improve the physical and chemical characters of soil than spring ploughing. 结果表明,秋耕地比春耕地更有利于维护草原土壤的理化性状,同时也更有利于作物的良好生长。
