“shelterwood cutting”的概念、定义、翻译、参考文献-科学参考

单词	shelterwood cutting
释义	shelterwood cutting Encyclopedia 农学〔森林主伐与更新〕释 shelterwood cutting渐伐在不超过一个龄级期限内，分2～4次伐掉伐区上全部成熟林木的森林主伐方式。又称遮阴木法或伞伐法。
随便看	clean of laws clean operation room clean out waste raw silk clean politics culture clean rice clean room cleanroom clean room air purification system cleanroom auxiliary equipment cleanroom filtration system clean room fire cleanroom software engineering clean steel clean steel smelting clean superconductor clean surface clean text policy clean the fracturing fluid clean tile problem clean tillage cleantrap clean up crops clean up files clean up polluted urban rivers Clean-up TV Campaign

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。