青铜器纹饰之一。在主体纹饰空隙中填饰的细密纹饰，作为主体纹饰的衬地。 地纹通常有雷纹、回纹等。
因为冲击波反映了折射率的明显和突然的变化，他们能在纹影摄影中清楚地被展现出来。
Because shock waves represent a stark and sudden change in refractive index, they show up clearly in schlieren photographs.
此时她正大不敬地从一个坟墓跳到另一个坟墓；终于来到一位逝去的大人物——说不定正是艾萨克，约翰逊本人——的宽大、平整、带纹章的墓石跟前，在那上面跳起舞来。
She now skipped irreverently from one grave to another; until, coming to the broad, flat, armorial tombstone of a departed worthy - perhaps of Isaac Johnson himself - she began to dance upon it.
矿物成分能很好地和油性肤质亲和，加上自然的防晒系数，就能提高皮肤中的抗氧化酶的保护效应，从而帮助抵御皮肤的幼纹和一些不平衡基调。
"Minerals work well with oily skin, have a natural SPF, and enhance the protective effect of antioxidant enzymes in the skin that help prevent fine lines and uneven tone, " advises Graf.
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