“The United States of America National Park System”的概念、定义、翻译、参考文献-科学参考

单词	The United States of America National Park System
释义	The United States of America National Park System Encyclopedia 工学〔外国国家公园〕释 The United States of America National Park System美国国家公园系统美国政府为保存自然环境而设置的地区的总和。
随便看	stratified media stratified medium stratified mixture stratified multiobjective programming Stratified randomization Stratified randomization design stratified random sampling stratified rock stratified sample stratified sampling stratified set stratified simplex method stratified squamous epithelium stratified water flow channel stratifization stratigram stratigraphic architecture stratigraphic classification stratigraphic code stratigraphic correlation stratigraphic framework stratigraphic guide stratigraphic section stratigraphic subdivision stratigraphic table

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。