therapy appliance of complex magnetic field

例句：

1. 1.The therapy appliance of complex magneticfield has been proven to be effective intreating chronic pain.
   这种复杂磁场治疗设备已被证明对慢性疼痛有效。
2. 2. The patientwas given a therapy appliance ofcomplex magnetic field for the treatment of hisback pain.
   患者被给予一种复杂磁场治疗设备来治疗他的背痛。
3. 3. Thetherapy appliance of complex magnetic fieldis widely used in hospitals and clinicsfor its effectiveness in treating various diseases.
   复杂磁场治疗设备在医院和诊所中广泛使用，因其在治疗各种疾病中的有效性而受到欢迎。