“systems tract”的概念、定义、翻译、参考文献-科学参考

单词	systems tract
释义	systems tract [`sis·tǝmz ´trakt] ^GEOLOGY A discrete package of distinctive sediment types (facies) that are laid down during different phases of a cycle of sea-level change.
随便看	hemarthrosis hematein hematemesis hematidrosis hematin hematite hematoblast hematocele hematochrome hematocrit hematodocha hematogenous hematoidin crystals hematolite hematologist hematology hematoma hematometra hematomyelia hematopathology hematophagous hematophanite hematopoiesis hematopoietic system hematopoietic tissue

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