Concept: The representativeness of a sample refers to the extent to which the sample or sample taken represents the location or ore body unit (or population) being sampled. Its quantitative representation is analog error or representative error. The representativeness of the sample is divid…
In the application of perimeter security, various security systems such as infrared radiation, electronic fence, and infrared grating can be used. Among them, the infrared radiation security system is widely used in the field of perimeter prevention, involving communities, vi…
License plate recognition system failures and troubleshooting methods:
The first case may be that when the card is near the license plate reader, it does not respond and the card number is not read on the software's detection control pane…
Green analysis technology has become the frontier of international analytical chemistry. Its goal is to minimize or minimize the use of harmfu…
[China Instrument Network Instrument R&D] On May 10, 2017, the preliminary acceptance of the project of "Development and Application of Large-scale Fiber-optic Hydrophone Array Underwater Acoustic Detector", a national major scientific instrument and equipment development, was h…
16 meters …
FAW school buses have not officially put on the market since their debut. Jiang always said that China FAW is relatively considerate on the issue of school buses and has always been cautious about launching new products. Because school buses are children's spec…
Walk-in products are maintained for safe and trouble-free operation. Regular inspections and repairs not only solve problems in a timely manner, but also keep the system in top working condition.
1. The walk-in temperature and humidity test system must be operated and maintained by spe…
1. The walk-in temperature and humidity test system must be operated and maintained by spe…