Possibly pirates knew that the ear can be an acupuncture point, both for improved eye sight and to relieve sea-sickness.
也许还有可能是海盗们知道耳朵是一处穴位，戴耳环既可以提高视力又能缓解晕船的症状。
2
Conclusion acupuncture combined with electroacupuncture, ear point tapping, TDP radiation has a better therapeutic effect on central obesity.
结论：针刺结合电针、耳穴贴压、TDP照射对中心型肥胖有较好的疗效。
3
The procedures for ear piercing, tattooing, acupuncture, and other commercial (often licensed) activities should require single-use or heat-sterilized equipment.