Cartons, cardboard resistance broken meter, temperature tracker, coating thickness gauge, hardness and a high degree of regulation, and other devices.
纸箱、纸板耐破度仪、炉温跟踪仪、涂层测厚仪、硬度计、高度规等测试仪器。
2
The problem of verification for the conductivity meter of light fuel oil are resolved by using highresistance and the certified reference materials.
采用高阻结合标准物质的方法解决了轻质油料电导率仪无法检定的问题。
3
Surveying the internal resistance of a sensitive electric current meter is a rather difficult and complicated electromagnetic experiment which is hard to get a high precision.