| 1. | Letter symbols in data sheets for electronic tubes
电子管数据表中的字母符号 |
| 2. | Plasma display panels - terminology and letter symbols
等离子体显示板.术语和字母符号 |
| 3. | Letter symbols for mechanics and time - related phenomena
机械和与时间相关的现象用字母符号 |
| 4. | Nomenclature , definitions , and letter symbols for screw threads
螺纹的字母符号命名和定义 |
| 5. | Screw threads , nomenclature , definitions , and letter symbols for
螺纹的术语定义和字母符号 |
| 6. | Letter symbols and abbreviations for quantities used in acoustics
声学量值的字母符号和缩写 |
| 7. | Glossary of terms concerning letter symbols
有关字母符号的术语词汇 |
| 8. | Letter symbols for heat and thermodynamics
热学和热力学用字母符号 |
| 9. | Time - dependent quantities ; letter symbols
与时间有关的量.字母符号 |
| 10. | Letter symbols for physical quantities ; symbols for general use
物理量的字母符号.一般用途符号 |
