单词	生长环--年轮
释义	生长环;年轮growth ring
随便看	conservation of information conservation of leptons conservation of linear momentum conservation of magnetic momentum conservation of marine resources conservation of mass conservation of mass and energy conservation of matter conservation of mineral conservation of moment of momentum conservation of momentum conservation of natural resources conservation of nature conservation of number conservation of orbital symmetry conservation of parity conservation of potential vorticity conservation of probability conservation of quantum number conservation of resources conservation-of salt conservation of volume conservation-of volume conservation of vorticity conservation-oriented society