短语词组短語effluent lava flow 側巖流;側熔巖流composite lava flow 複郃熔巖流lava flow plateau 溶巖高原rhyolitic lava flow 流紋巖的熔巖流lava flow unit 熔巖流單元shape of lava flow 熔巖流形態flow lava 流狀熔巖 返回 lava flow