碎屑沉積clasticstructure: 碎屑構(gòu)造clastics: 碎屑物clasticwedge: 碎屑楔狀體clasticrock: 碎屑巖clastidium: 鏈孢藻屬下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯