.......

.......

.......

Salvaged coins.

On the 18th, Odyssey Marine Exploration announced that it had recovered a treasure worth 500 milli.......

• Model NO.: FY011
.......

Smart Grid High-security RFID technology refers to the integration of the national SM7 algorithm data security module in the ultra-high frequency ISO18000-6C RFID chip to ensure data security. This implantable encryption algorithm RF chip integrates UHF RFID tag chip, implantable.......

The pipe size and heat exchanger volume are smaller than the low pressure process, so the cold box size is relatively small, the system running cold can be reduced; and because the expansion of the expander is smaller than the expansion ratio of the relatively low pressure process, the ef.......

Analysis of the use of cold and thermal shock test chamber and the cause of failure
1. The thermal shock test chamber should be cleaned once during the use. Generally, this time is 3 months. For air-cooled cooling of the refrigeration system, the condenser fan should be re.......

In the United States, research and development of core technologies is usually undertaken by research institutes, universities, or national laboratories. Through the research and development of core technologies, after solving some basic and common technical problems, each company can develop c.......