Copy url：ac99·net mg4355 电子

diàn zǐ electronic; electron (particle physics)

线路

xiàn lù line; circuit; wire; road; railway track; bus route

检测

jiǎn cè to detect; to test; detection; sensing

（ 中国

Zhōng guó China

） 有限公司

yǒu xiàn gōng sī limited company; corporation

yyl