梯纹导管 [植] scalariform vessel ; scalariform duct ; vasa scalariformia

梯纹管胞 scalariform tracheid

梯纹加厚 [植] scalariform thickening

梯纹细胞 [植] scalariform cell

梯形螺纹 acme thread form ; trapezoid thread ; trapezoidal screw thread ; Metric trapezoidal screw threads

纹理梯度 [材] texture gradient

梯纹孔式 scalariform pitting

梯形螺纹量规 ACME STUB ACME ; gauges for metric trapezoidal screw threads ; BCSG

阶梯斜纹 elongated twill