角闪石的出现反映上地幔流体的渗透及交代作用。
The occurrence of pargasite reflects the participation of the upper mantle fluids and the metasomatism.
钠在细胞外起着循环流体的作用。
液压系统中过滤器作用是维持流体的清洁度。
T he function of filters in a hydraulic system is to maintain fluid cleanliness.
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