| 1. | Thermohydrographs are one of the most widely used recording instruments since they are convenient .
自记温湿度计是用得最广泛的一种记录仪器，因为它用起来很方便。 |
| 2. | The scanning of the film by the photometer in the spacial domain is equivalent to the operation of a filter on a signal flowing through it in the time domain .
在空间域用光度计进行扫描，和时间域中滤波器对所通过的信号进行运算等效。 |
| 3. | Reflection type smokemeters for automobile diesel engine
汽车柴油机反射型烟度计 |
| 4. | Verification regulation of ultraviolet irradiance meters
紫外辐射照度计检定规程 |
| 5. | Verification regulation of sea electric measuring thermometer
海洋电测温度计检定规程 |
| 6. | Verification regulation of electrode type salinometer
电极式盐度计检定规程 |
| 7. | Illuminance meters - requirements and test methods
照度计.要求和试验方法 |
| 8. | Verification regulation of filter - type smokemeters
滤纸式烟度计检定规程 |
| 9. | Verification regulation of induction salinometer
感应式盐度计检定规程 |
| 10. | Verification regulation of fineness of grind gage
刮板细度计检定规程 |
