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- The properties and carbonizing yield of several kinds of matrix precursors, such as bitumen, phenolic resin, COPNA resin, furan resin, polyarylacetylene are also mentioned. 讨论了不同物质,其中包括工业沥青、酚醛树脂、呋喃树脂、缩合多核芳香(COPNA)树脂以及聚芳基乙炔树脂作为碳/碳复合材料基体前驱体的特点。
- Keywords carbon matrix precursor;pyrolysis mechanism;AM1 method;equilibrium geometry and thermodynamics energy;thermoreactive activity.; 碳前驱体;热裂解机理;AM1;结构与能量;热反应活性;
- Keywords: C/C composite material, Carbon matrix precursor, Closed-pressure-vessel method, Pyrolysis temperature, Pyrolytic apparent activation energy, 关键词:碳/碳复合材料,碳前驱体,密闭压力容器法,热裂解温度,表观活化能
- The precursor of the modern car was a horseless carriage with a petrol engine. 现代汽车的前身是不用马拉的，装有汽油发动机的车子。
- Keywords CJC composites, RD process, carbon matrix precursor, cyclohexane,,,,, pyrolysis mechanism, quantum chemistry computation,,,,, thennodynantics, kin 碳/碳复合材料;快速液相沉积致密化工艺;碳源前驱体;环己烷;热裂解机理;量子化学计算;热力学;动力学;
- A term sometimes applied to a stylus in a thermal matrix printer. 有时用来指热敏点阵打印机的触针的一个术语。
- Thefirst telephone was the precursor of modern communications networks. 最早出现的电话是现代通讯网的雏型。
- The precursor or stem cell of a plasma cell. 成浆细胞浆细胞的前体细胞或干细胞
- The number of rows or columns in a determinant or matrix. 行列数行列式或矩阵中行或列的数目
- matrix precursor 前驱体
- A precursor cell of a melanocyte or melanophore. 成黑素细胞产生黑素细胞的母体细胞
- Error is often the precursor of what is correct. 错误常常是正确的先导。
- The precursor or stem cell of a plasmacell. 成浆细胞浆细胞的前体细胞或干细胞。
- A matrix used in constructing a symbol or character image on a display screen. 用来在显示屏幕上构造出一个符号或字符图象的一种点阵。
- An originator of a line of descent;a precursor. 前辈家族血脉的开始者；先驱
- An originator of a line of descent; a precursor. 前辈家族血脉的开始者;先驱。
- A severe cold may be the precursor of pneumonia. 重伤风可能是急性肺炎的先兆。
- Lysine is a precursor of certain alkaloids. 赖氨酸是某些生物碱的前体。
- The first ribin us a precursor of spring. 头一只知更鸟是春天的先兆。
- ARJ21 is seen as the precursor to a jumbo jet. ARJ21型飞机被看作是大型喷气式飞机的前身。
