单片机向串口发送汉字，超级终端为啥显示是乱码？

效果如下：
绀哄姛浠浇鑽风數鍘嬫槸: 1497mV
Channel '1' voltage is 1835mV
Channel '2' voltage is 1270mV
鍔犻€熷害浼犳劅鍣ㄧ數鍘嬫槸: 2426mV
Channel '4' voltage is 1524mV
Channel '5' voltage is 4mV
Channel '6' voltage is 657mV
鐢垫睜鐢靛帇鏄? 2394mV
Channel '8' degree is 160.139800
绀哄姛浠浇鑽风數鍘嬫槸: 1497mV
Channel '1' voltage is 1835mV
Channel '2' voltage is 1270mV
鍔犻€熷害浼犳劅鍣ㄧ數鍘嬫槸: 2426mV
Channel '4' voltage is 1524mV
Channel '5' voltage is 4mV
Channel '6' voltage is 657mV
鐢垫睜鐢靛帇鏄? 2394mV
Channel '8' degree is 160.139800