tourmalin
1. Brazilian tourmalin
巴西碧硒
2. brown tourmalin
棕碧硒
3. Keywords Tourmalin;Electret;Melt-blown nonwovens;Infrared;Heat-storage;Negative ions;Anti-bacteria;
电气石;驻极体;熔喷非织造布;远红外;蓄热性;负离子;抑菌性;
4. alkaline tourmalin
碱电气石