久久久久久亚洲欧洲 I 干干射 I 在线观看日本一区二区 I 色欲视频综合免费天天 I 奇米在线777 I 一区两区小视频 I 131mm少妇做爰视频 I 天天色人人爱 I 五月婷婷丁香在线 I 欧美国产黄色 I 国产亚洲精品久久久久久老妇小说 I 国产成人精品片 I 99热精品免费 I 国产99爱在线视频免费观看 I 欧美自拍另类欧美综合图片区 I 综合网国产 I 少妇厨房愉情理9伦片视频 I 午夜色在线观看 I 黄网页在线看 I 变态另类久久变态变态 I 日韩精品一区二区三区免费视频观看 I 国产精品不卡一区二区三区 I 三级影片在线免费观看 I 啪啪av影院 I 欧美综合站 I 狼人无码精华av午夜精品 I 亚洲综合色丁香婷婷六月图片 I 日本免费一区二区三区高清视频 I 国产精品免费观看视频 I 激情欧美一区二区三区免费看

Class Has Started.

20^th?August at 4:00 p.m.

Mr. Yu Xiaochen, engineer of R&D Department of DDTOP Technology Center, will share the course of “Electromagnetic Compatibility of Instruments”.

This?course is divided into two parts including:

1、What is electromagnetic compatibility?

2、Application of electromagnetic compatibility in products.

Welcome to the live classroom. Mobile users can access the live classroom by identifying the QR code in the picture above.

The following link can be copied by computer users to watch the live webcast.

https://ke.qq.com/webcourse/index.html#cid=2672944&term_id=102779199&lite=1&from=800021724

Please forward to your friends so that everyone can share and enjoy the knowledge.