螺纹加厚
- 网络spiral thickening; Helicall thickenings
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螺纹加厚
spiral thickening
生物科学词汇(简体) ... spiral cleavage 旋裂; 旋卵裂 spiral thickening 螺纹加厚 spirillum 螺菌; 螺旋状菌 ...
Helicall thickenings
主要商品木材鉴别方法 -木材人造板行业标准... ... 结晶体 Crystals 螺纹加厚 Helicall thickenings 材色 Wood color ...