“frog rammer”的概念、定义、翻译、参考文献-科学参考

单词	frog rammer
释义	frog rammer Encyclopedia 工学冲击夯释 frog rammer蛙式夯实机利用偏心块旋转产生的离心力进行冲击夯实作业的小型压实机械。因行进时如蛙跳而得名。
随便看	plant growth promoting rhizobacteria plant growth-promoting rhizobacteria，PGPR plant growth prompting fung plant growth regulator plant growth substance plant habitat microbes plant-herbivore interaction Plant Holly planthoppers plant hormones plant immune activator planting planting and breeding in paddy planting arrangement of fruit trees planting density planting engineering of landscape architecture planting in rows planting machinery planting non-point source pollution planting production statistics planting season planting soil planting spacing planting system planting technique

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