给出巷道支护中测力锚杆的力学模型，指出测力锚杆实际应用中主要承受拉力、扭矩作用。
输入设备获取足底信息的方式通常有三种：扫描仪、测力板、摄像头。
1·This pocket type electronic balance adopts the dynamometry transducer to change the gravity signal into an electric signal measurement, and will measure the result and carry on the digital display.
此袖珍式电子秤采用测力传感器将重力信号转换成电信号来测量，并将测量结果进行数字显示。
2·Generally the input equipment can procure the thenar information by three kinds of methods: scanner, dynamometry board and video camera.
输入设备获取足底信息的方式通常有三种：扫描仪、测力板、摄像头。