| 1. | Verification regulation of double beam uv - vis spectrophotometers
双光束紫外可见分光光度计检定规程 |
| 2. | Double beam microspectrophotometer
双光束显微分光光度计 |
| 3. | Double beam spectrum radiator
双光束光谱福射计 |
| 4. | Double beam spectrophotometer
双光束分光光度计 |
| 5. | Double beam oscillograph
双光束示波器 |
| 6. | Double beam photometers
复光束量测器 |
| 7. | Standard practice for making and using precracked double beam stress corrosion specimens
裂缝前双束应力腐蚀样品的制作和使用标准实施规范 |
| 8. | Electric control system of toyota 610 air - jet dobby loom changed from single beam to double beam
丰田610型喷气织机单经轴多臂机的电气改造 |
| 9. | Design of dynamic focusing circuit for testing system of projection cathode ray tube with double beams
双束投影管测试台中动态聚焦电路的研制 |
| 10. | Analysis on the reform of frequency chengerand adjusting of double beam exchange bridge crane in mine workshop
双梁交流桥式起重机变频调速改造分析 |
