线段主要分为五种: 粗线表示纸边 幼线表示折痕 虚线表示谷折法(VALLEY FOLD) 有点虚线表示山折法(MOUNTAIN FOLD) ------------ 点线表示纸下面的折纹或参考线 在大..
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5条回复 - 发帖时间: 2011年2月14日1:谷折(valley fold)和山折(mountain fold)如图:谷折就是凹进去,折成山谷的形状,用虚线表示。山折(或叫峰折)就是凸出来,折成山峰的形状,用点划线.
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fold mountain 褶曲山 ; 褶皱山
young fold mountain 新褶曲山脉 ; 幼年褶皱山脉
old fold mountain 古褶曲山脉 ; 古褶皱山脉 ; 褶曲山脉
block-fold mountain 地块褶曲山块褶山地
fold mountain system 褶皱山系
fold mountain range 褶皱山脉
young g fold mountain 新褶曲山脉 ; 幼年褶皱山脉
fold mountain belts 褶曲山脉带
old d fold mountain 古褶皱山脉
Heicigou gold deposit is regionally located at the western section of the southern Qilian geosyncline of QinlingQilianKunlunshan mountain fold system.
黑刺沟金矿位于秦祁昆地槽褶皱系南祁连地向斜构造带的西段。
A third type of mountain may be formed as a result of volcanic activity which occurs in regions of active fold mountain belts, such as in the Cascade Range of western North America.
第三种类型的山可能是由于火山活动形成的,一般发生在活动性褶皱带地区,如北美西部的喀斯喀特山脉。
A third type of mountain may be formed as aresult of volcanic activity which occurs in regions of active fold mountain belts, such as in the Cascade Range of western North America.
第三种类型的山脉可能由于火山活动而形成,火山活动发生在活跃的褶皱山脉带上,如北美洲西部的喀斯特山脉。
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