NEWS
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China-US tariffs, reduced by 115%!
In the spirit of mutual openness, continuous communication, cooperation and mutual respect, China and the United States commit to take the following...Read more -
Guānshuì zhī zhàn, wǒmen héqùhécóng 2025 nián 4 yuè 2 rì měiguó yú xuānbù duì suǒyǒu zhòng guó shū měi shāngpǐn jiā zhēng 34%de"duì děng guānshuì"; 4 yuè 4 rì, guówùyuàn guānshuì shuìzé wěiyuánhuì biǎoshì, duì yuán chǎn yú měiguó de suǒyǒu jìnkǒ
On April 2, 2025, the United States announced a 34% "reciprocal tariff" on all Chinese goods exported to the United States;On April 4, the...Read more -
What is the proper use of resistors?
Resistance is a physical quantity that in physics indicates the amount of impedance of a conductor to an electric current.The greater the resistance...Read more -
Sliding resistor voltage divider and current limiting connection
The sliding varistor is an instrument commonly used in secondary school students' tests, and its connection in the circuit has two types of bed...Read more