2) structure and texture preserving
结构和纹理保持
3) grain retention
花纹保持度
4) retention of embossing
压纹保持度
6) preservation theorem
保持定理
1.
Interpolation theorem and preservation theorem in first order logic have determined the existence of first order formula in accordance with certain conditions, their proofs in classical model theory are fairly long and hard to tackle.
一阶逻辑的内插定理和保持定理确定了符合某些条件的公式的存在性 ,经典模型论中对这些的证明较为繁难 。
补充资料：纹理
物体上的条纹：柳桉木的纹理很清晰。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条