词汇	保持开放装置
释义	保持开放装置 hold-clear
随便看	natural history museum Natural history museum ard paleoenvironment natural history of disease natural history of hiv infection Natural hormone preparation natural horn natural host natural hot spring natural hot-water reservoir natural human feeling Natural humanism natural humanity natural humanization natural human nature natural human qualities natural human rights natural human viewpoint natural humidity natural humus acid natural hybrid natural hybridization natural hybrid orbital natural hybrid selection natural hydrated kaolin natural hydrate vehicle