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- The catalytic property of urushiol - metal polymers (USn, UMn, UTi,UNd,UCo and UAl)for esterification is preliminarily investigated. 本文报道某些漆酚金属聚合物催化乙酸-丁酸酯化反应的初步研究结果。
- The paper introduces the formula,indoor experiment results and in-site application in Panlong Well 1.about complex metal polymer sulfonated drilling fluid with high temperature stability. 文中介绍了抗高温深井复合金属聚磺钻井液的配方组成,室内性能测试结果和在盘深1井的现场应用实例。
- metal polymer ( chrome - free) tanning agent 多金属(无铬)复合鞣剂
- She knows why the metal is the good conductor. 她知道金属为什么是好的导体。
- Can I fasten these metal plates with rivets? 我可以用铆钉把这些金属板固定在一起吗?
- You need a strong adhesive to bond wood to metal. 需要强力胶才能把木料粘在金属上。
- The car was now just a pile of twisted metal. 那辆汽车已经成了一堆压缩的废铁了。
- The metal basin clattered down the stone stairs. 金属盆子沿着石阶滚了下去,发出咣啷声。
- Aluminum is a kind of light silvery metal. 铝是一种轻薄并呈银色的金属。
- The aeroplane wing showed signs of metal fatigue. 机翼显出有金属疲劳的现象。
- An investigation of formation protection mechanisms of composite metal polymer drilling fluid 复合金属两性离子聚合物钻井液保护储层机理初探
- The metal frame tends to twist under pressure. 这种金属框受压後容易变形。
- The ship was broken up for scrap metal. 这艘船拆毁了当废铁用。
- Being heated, the metal is rapidly melting. 由于受热,金属在迅速熔化。
- The metal has corroded (away) because of rust. 该金属已锈蚀。
- Keywords metal polymer complex;luminescent material;preparation technology;organic light emitting diode(OLED);ligand; 关键词高分子金属配合物;发光材料;制备技术;有机电致发光器件;配体;
- You need a powerful saw to cut through metal. 切割金属需用强劲的锯。
- The result shows that catalyst concentration, reaction time, urushiol concentration and temperatures affect the polymer yield in oxypolymerization of urushiol system. 讨论了该配合物作为催化剂,催化漆酚氧化聚合反应时,催化剂浓度、时间、底物浓度以及温度对漆酚氧化聚合反应的影响。
- The hot metal contracts as it cools (down). 热的金属一冷(下来)就收缩。