axle box rubber spring轴箱橡胶弹簧
box back spring梭箱后皮弹簧
reverse box detent spring换向箱卡销弹簧
box x spring mattress框架弹簧垫
journal-box lid spring轴颈箱盖弹簧
box x spring mattress cover框架弹簧床垫套
box spring mattress框架弹簧垫
journal box spring轴箱弹簧
box spring mat justtress框架弹簧垫
N-COUNT（可数名词） A box spring is a frame containing rows of coiled springs that is used to provide support for a mattress. You can also use box springs to refer to the springs themselves. 弹簧床垫的框架或弹簧