紫外线
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(紫(zǐ )外(wài )线(xiàn ),紫(zǐ )外(wài )线(xiàn ))
一(yī )种(zhǒng )波(bō )长(zhǎng )比(bǐ )可(kě )见(jiàn )光(guāng )线(xiàn )短(duǎn )的(de )电(diàn )磁(cí )波(bō ),波(bō )长(zhǎng )由(yóu )4000埃(āi )到(dào )60埃(āi ),在(zài )光(guāng )谱(pǔ )上(shàng )位(wèi )于(yú )紫(zǐ )色(sè )光(guāng )的(de )外(wài )侧(cè )。紫(zǐ )外(wài )线(xiàn )能(néng )使(shǐ )磷(lín )光(guāng )和(hé )荧(yíng )光(guāng )物(wù )质(zhì )发(fā )光(guāng ),能(néng )透(tòu )过(guò )空(kōng )气(qì ),不(bú )易(yì )穿(chuān )过(guò )玻(bō )璃(lí ),有(yǒu )杀(shā )菌(jūn )消(xiāo )毒(dú )的(de )能(néng )力(lì ),对(duì )眼(yǎn )睛(jīng )有(yǒu )伤(shāng )害(hài )作(zuò )用(yòng )。也(yě )称(chēng )紫(zǐ )外(wài )光(guāng )。
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