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- The testing method of some physical and chemical properties of water reducer, its mechanism on concrete and its development trends are expatiated. 以分子结构改性的观点出发,提出了对芳烃系减水剂进行分子设计的新思路,并介绍其内容。
- physical and chemical properties of water and soil 水土壤理化性质
- Physical and chemical properties of this crystal are reported. 论及了此晶体的物理、化学性质。
- The Effects of Applying Bleaching Powder on the Physical and Chemical Properties of Water and Demersal Creatures 施用漂白粉对池塘理化性质及底栖动物的影响
- Effects of Alkalinization on Physical and Chemical Properties of Water in the West Lake 西湖湖水碱化对水体理化性质的影响
- Keywords bleaching powder;pond disinfection;physical and chemical properties of water;demersal creatures; 漂白粉;池塘消毒;水体理化性质;底栖动物;
- Physical and chemical properties of Calcium Carbide. 炭化钙理化指标。
- It is possible to harness the versatile chemical properties of cyanogen azide. 氰化叠氮的灵活多变的化学性质是可控制的。
- Chemical properties of water 水化学特征
- The article introduced the physical chemical properties of the polyglycerol. 介绍了聚合甘油的物理化学性质。
- The study shows that the sealant has a good bonding effect on concrete with better properties of water proof, weather resistance, chemical resistance and anti-freezing. 研究结果表明,该密封胶对混凝土粘结性好,并具有优良的耐水、耐候、耐化学介质性及耐冻融性等特点。
- At the same time,the properties of water reducing were rudimentarily discussed. 对其减水等性能进行了研究。
- Liquid film mulching improved physical and chemical properties of soil. Liquid film was a kind of polymer mixture. It combined with soil particles and formed a black solidified membrane on the soil surface after adding water and spraying on the soil. 2 液体地膜覆盖改良土壤理化性状 液体地膜是高分子混合物,兑水喷施于土壤表面后,这些高分子与土壤颗粒相结合,在土壤表层形成一层黑色的固化膜。
- A nonmetallic element,such as arsenic,that has some of the chemical properties of a metal. 准金属,类金属具有一些金属化学特性的非金属元素,例如砷
- The chemical property of formation water in oil layer might be equal to that of adjacent water layer. 油层中地层水的化学特性可能等同于临近水层的化学特性,当地层水与其宿主岩的形成时间不同时,就可能与之完全不同。
- A nonmetallic element, such as arsenic, that has some of the chemical properties of a metal. 准金属,类金属具有一些金属化学特性的非金属元素,例如砷
- Chemical property of precipitation in Pinus tabuleaeformis water resource protection forest in Miyun Reservoir wa-tershed. 密云水库集水区人工油松水源保护林降水化学性质研揪。
- Relating to both physical and chemical properties. 物理和化学的与物理和化学特性均有关的
- He is studying the properties of these particles. 他在研究这些粒子的性质。
- In production,the special physical and chemical property of the wet material and high water content make the prilling and drying very difficult. 在生产中,因其湿物料物化性质较特殊,含水量大,致使其造粒干燥很困难。