8310,8313,8314,8315系列压差传感器坚固 Sensors in the 831x series measure differences in pressure between the two ports of the measuring element. Pressure differences can be measured with respect to a reference ...
截至 2024 年 7 月,中国 41 个对外开放口岸对54 个国家人员实施72或144小时过境免签政策。 As of July 2024 China has 41 ports open to the world implementing 72/144-hour visa-free transit for 54 countries. 吃、喝、玩、乐、游、购、住,拿出手机扫一扫,正成为外国游客来华的 ...
The National Immigration Administration said on Friday it expects an average of 1.8 million inbound and outbound travelers per day during the upcoming Mid-Autumn Festival holiday, a 21.9 percent ...