Nucleic acid detection is essentially realized by using the PCR reaction (polymerase chain reaction) we learned in high school biology books. The PCR reaction utilizes the double-strand replication principle of DNA to amplify a large number of target genes in vitro. The nucleic acid amplification stage requires the use of a PCR instrument, which can automatically "denature-anneal-extend" the submitted liquid to amplify the amount of nucleic acid. It seems very simple, but in fact it is very time-consuming from nucleic acid collection to results.
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triode is a current control element,triode is a current control element, and the field effect tube is a voltage control element.
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Is Moore's Law dead? Let's listen
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The series resonant intermediate frequency induction furnace adopts IGBT intermediate frequency power supply. IGBT intermediate frequency power supply is a new type of IGBT inverter module, mainly used for melting carbon steel, alloy steel, cast steel and non-ferrous metals. IGBT intermediate frequency power supply has the characteristics of fast heating speed, energy saving and environmental protection.
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Qatar World Cup, a big upset! Saudi Arabia scored two goals in 5 minutes of the second half, reversed 2-1 and defeated Argentina in an upset!
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The shape recognition of electronic components is to correspond to the physical object and the name. The purpose is to get an electronic component to know what it is and its circuit graphic symbol.
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