PING www.yemedical.com.cn (106.54.45.91) 56(84) bytes of data.
64 bytes from 106.54.45.91 (106.54.45.91): icmp_seq=1 ttl=50 time=250 ms
64 bytes from 106.54.45.91 (106.54.45.91): icmp_seq=2 ttl=50 time=247 ms
64 bytes from 106.54.45.91 (106.54.45.91): icmp_seq=3 ttl=50 time=250 ms

--- www.yemedical.com.cn ping statistics ---
3 packets transmitted, 3 received, 0% packet loss, time 2001ms
rtt min/avg/max/mdev = 247.263/249.349/250.430/1.584 ms