片语
v-belt-transmissionv带传动
belt conveyer transmission agent带式输送机传动
the v belt-transmissionv带传动
belt conveyer transmission带式输送机传动
belt conveyor transmission带式输送机传动
belt transmission system皮带传输系统
belt drives皮带传动(belt drive的复数)
sychronous belt transmission同步带传动
flat-belt transmission平带传动