perfect cleavage

Plagioclase is usually white-colored with perfect cleavage and albite twins .

斜长石通常呈白色，具有完全解理和聚片双晶。

Diopside crystals have a perfect cleavage in two directions , are often twinned and are short and columnar , but with an uneven fracture .

透辉石有两个方向的完全解理，通常为孪晶生成，短且成圆柱形，断口参差不平。

Conclusion The ribozyme with perfect cleavage activity in the cell-free system used inhibited TGF β 1 expression effectively in activated HSCs . This ribozyme can provide a potential therapeutic approach for liver fibrosis .

结论此核酶在胞外具有特异切割活性，在肝星状细胞内抑制TGFβ1的表达，有望为肝纤维化的治疗提供新的手段。

Any of various minerals consisting of hydrous silicates of aluminum or potassium etc. that crystallize in forms that allow perfect cleavage into very thin leaves ; used as dielectrics because of their resistance to electricity .

由含水硅酸铝或硅酸钾等组成的矿物，呈晶体状，能分裂成极薄的片状，具有良好的电绝缘性。