Description
hardware flow control. It is an ideal choice in the field of industrial automation.
Mobile Phone Radio Frequency Devices 0 7 “Radio Frequency Devices: The embarrassment of relying on people”s mobile phones” (Science and Technology Daily, May 7)
On a mobile phone motherboard, 1/3 of the space is radio frequency circuitry. The development trend of mobile phones is to be thinner and lighter, consume less
power, have more frequency bands, and have larger bandwidth, which poses a challenge to radio frequency chips. Radio frequency chips convert digital signals into
electromagnetic waves. 4G mobile phones must support more than a dozen frequency bands and information bandwidths of tens of megabytes. In 2018, the RF chip
market was US$15 billion; the high-end market was basically monopolized by Skyworks, Qorvo and Broadcom, with Qualcomm also occupying a place. Another key
component of RF devices – filters, the gap between domestic and foreign countries is even greater. The multi-billion-dollar market for high-end filters used in mobile
phones belongs entirely to foreign RF device giants such as Qorvo. China is the world”s largest mobile phone manufacturer, but it cannot manufacture high-end mobile
phone radio frequency components. This requires solid accumulation of materials, processes and design experience.
Heavy-Duty Gas Turbine 0 8 “”The Mingmen Fire Decline”, the Disaster of the Blades of Heavy-Duty Gas Turbine” (Science and Technology Daily, May 9)
Gas turbines are widely used in ships, trains and large power stations. Our country has the ability to automate light-duty gas turbines; however, it still
basically relies on introduction. There are four major international rekindling manufacturers: GE from the United States, Mitsubishi from Japan,
Siemens from Germany, and Ansaldo from Italy. Cooperation with China comes with stringent conditions: design technology will not be transferred,
core hot-end component manufacturing technology will not be transferred, and local manufacturing of non-core components will only be permitted
through a license. The lack of independent capabilities means that an important part of my country”s energy security is still controlled by others, and there is a risk of being “stuck.”
Excitation system ABB module DSQC1015
Excitation system ABB module DSQC1000
Excitation system ABB module DSPX3221
Excitation system ABB module DSPU131 3BSE000355R1
Excitation system ABB module DSPU120
Excitation system ABB module DSPC452 57310303-A
Excitation system ABB module DSPC406
Excitation system ABB module DSPC406
Excitation system ABB module DSPC365
Excitation system ABB module DSPC3221
Excitation system ABB module DSPC3122
Excitation system ABB module DSPC3121
Excitation system ABB module DSPC3001
Excitation system ABB module DSPC174 3BSE005461R1
Excitation system ABB module DSPC174
Excitation system ABB module DSPC173
Excitation system ABB module DSPC172H
Excitation system ABB module DSPC172H
Excitation system ABB module DSPC172-2
Excitation system ABB module DSPC172
Excitation system ABB module DSPC172
Excitation system ABB module DSPC171 57310001-CC
Excitation system ABB module DSPC171
Excitation system ABB module DSPC170H
Excitation system ABB module DSPC170
Excitation system ABB module DSPC170
Excitation system ABB module DSPC157
Excitation system ABB module DSPC155
Excitation system ABB module DSPC154
Excitation system ABB module DSPC153
Excitation system ABB module DSPC-150
Excitation system ABB module DSPB120
Excitation system ABB module DSPB112
Excitation system ABB module DSPB110
Excitation system ABB module DSPA110
Excitation system ABB module DSO14
Excitation system ABB module DSMD113 5736045-N/1
Excitation system ABB module DSMD113
Excitation system ABB module DSMD112
Excitation system ABB module DSMD110
Excitation system ABB module DSMC112 57360001-HC
Excitation system ABB module DSMC112
Excitation system ABB module DSMB340
Excitation system ABB module DSMB178
Excitation system ABB module DSMB176
Excitation system ABB module DSMB175 57360001-KG
Excitation system ABB module DSMB175 57360001-KG
Excitation system ABB module DSMB-175
Excitation system ABB module DSMB175
Excitation system ABB module DSMB173
Excitation system ABB module DSMB151
Excitation system ABB module DSMB144
Excitation system ABB module DSMB137
Excitation system ABB module DSMB133 57360001-CY
Excitation system ABB module DSMB133
Excitation system ABB module DSMB127 57360001-HG
Excitation system ABB module DSMB127
Excitation system ABB module DSMB-126A
Reviews
There are no reviews yet.