Another sign of ice is the presence of parallel lines and pitted material on the crater floor.
另外一个有冰存在的迹象就是陨石坑底部的并行线和无核物质。
In network communication, nonverbal communication sign is a parallel system against verbal communication sign, playing the role of expression, enhancement, complementarity and so on.
网络交际中，非语言交际符号与语言交际符号是两个并行的系统，网络非语言交际发挥着表明态度、强化感情、补充说明等作用。
The glyph is "a combination of the Greek epsilon, as a sign of the weight of European civilization; an E for Europe; and the parallel lines crossing through standing for the stability of the euro".
欧元符号是希腊语字母第五字厄普西隆、E和两条平行线的结合，分别象征欧洲文明、欧洲和欧元稳定。
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