pith
n. 精力; (木)髓; (爭論、思想等)核心; 橙子等外皮之下的海綿層
The pith of an orange, lemon, or similar fruit is the white substance between the skin and the inside of the fruit.
1. soft spongelike central cylinder of the stems of most flowering plants
2. the choicest or most essential or most vital part of some idea or experience;
For example, the cytokinins were discovered through work on tobacco pith tissue culture.
例如: 細胞分裂素就是在進行菸草髓部組織的組織培養過程中發現的.
The pith of his speech was focused on the importance of education.
他演講的核心著重於教育的重要性.
Heartwood is the mature wood, which is often darker, extending from the sapwood to the pith.
心材通常是成熟的木材部分, 通常色澤較暗, 範圍從邊材一直到髓心.
Digital Signal Process is the spirit and pith of all the software radio.
數字訊號處理器是整個軟體無線電方案的靈魂和核心所在.
Judging from its appearance, it must be the pith.
這株植物從外觀上看應該是通草.