“软伞包降落伞”的概念、定义、翻译、参考文献-科学参考

科学参考收录了1248194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。

单词	软伞包降落伞
释义	软伞包降落伞 soft pack parachute
随便看	stratified language stratified material stratified media stratified mixture stratified multistage cluster sampling stratified multistage sampling stratified ocean stratified one-stage cluster sampling stratified pavement epithelium stratified plastics stratified probability sampling stratified proportional sampling stratified purposive sample stratified random stratified random sample stratified random sampling stratified random sampling method stratified randon sampling stratified ratio estimate stratified regression estimate stratified relief stratified rock stratified rocks stratified sample stratified sampling