ㄒㄧㄥˊxíngㄔㄥˊchéngㄘㄥˊcéng

  1. 木本植物木質部韌皮部組織組織緊密排列細胞不斷分裂向外生成韌皮部生成木質部使不斷

vascular cambium (layer of tissue responsible for growth inside wood)​
cambium
Kambium (Bio)​