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- Keywords polypropylene glycerol aether;tungsten phosphate acid;ring opening polymerization;catalyst; 聚氧丙烯甘油醚;开环聚合;磷钨酸;催化剂;
- tungsten phosphate acid 开环聚合
- The consumption of the carbon, nitrogen and phosphate acid closely correlated with the crocin synthesis. 采取固液两步培养法可以有效解决藏红花素合成与藏红花素抑制细胞快速增殖的相互矛盾。
- The study on preparation of potassium dihydrogen phosphate from potassium chloride and phosphate acid by extraction method was carried out. 研究了以氯化钾和磷酸为原料,溶剂萃取法制备磷酸二氢钾的工艺。
- A STUDY OF SURFACE GRAFTING FLAMERETARDANT PVA BY PHOSPHATE ACID CHLORIDE 磷酸酯酰氯表面接枝聚乙烯醇的阻燃改性研究
- We make superphosphate by reacting rock phosphate with sulphuric acid. 我们使磷酸盐岩同硫酸发生化学反应制造过磷酸钙。
- He gave me a taste of his acid wit. 他让我尝到了他敏锐尖刻之机智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Acid had pitted the surface of the silver. 酸把银器的表面腐蚀了。
- I am doing an experiment of neutralizing acid. 我在做一个中和酸的实验。
- Can Jones beat Smith? That's the acid test. 琼斯能击败史密斯吗？那是个严峻的考验。
- A salt or an ester of boric acid. 硼酸盐一种硼酸盐或硼酸酯
- The tungsten shines and gives a good light. 钨丝发亮而射出耀眼的光芒。
- She dropped acid in high school. 她高中时代服迷幻药。
- The metal is fretted with the acid. 金属被酸腐蚀。
- Tungsten is classified among the metals. 钨归入金属类。
- The chemical can behave as an acid. 这种化学制品能起酸的作用。
- The tungsten does not easily melt or break. 钨丝不容易熔化或折断。
- The acid has eaten through the metal cover. 酸已把金属盖子蚀穿了。
- Even with the air pumped out the bulb, the tungsten filament slowly vaporizes. 即使灯泡中的空气被抽出，钨丝也会慢慢地蒸发。
