arc back的意思|arc back的解释-里氏词典

[机] 逆弧

The geotectonic background of forming the rock sequence includes oceanic ridge, island arc, back-arc basin, and small ocean basin etc.
其形成的大地构造背景多样：包括洋中脊、弧、后盆地、裂作用导致的小洋盆等，原始岩浆来自于上地幔及下地壳的深熔作用。
Zhongdian arc of the southern segment lacked back-arc basin, but had extensive calc-alkaline complex distribution of arc volcanics-porphyry
南段中甸弧不发育弧后盆地,但广泛发育钙碱性弧火山岩-玢岩-斑岩杂岩系和挤压环境岩浆-流体成矿系统,形成斑岩型-夕卡岩型铜多金属矿床。
Before re1 easing the javelin， the competitor may not turn his or her back toward throwing arc.
标枪出手之前，身体不得完全转向背对投掷弧。

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