trapezium

来自拉丁语 trapezium,梯形，来自希腊语 trapezion,不规则四边形，来自 tra-,四，词源同 four,tetralogy,peza,脚，词源同 foot,biped.

trapezium (n.)

1560s, from Late Latin trapezium, from Greek trapezion "irregular quadrilateral," literally "a little table," diminutive of trapeza "table, dining table," from tra- "four" (see four) + peza "foot, edge," related to pous, from PIE root *ped- (1) "a foot" (see foot (n.)). Before 1540s, Latin editions of Euclid used the Arabic-derived word helmariphe. As the name of a bone in the wrist, it is recorded from 1840.

1. The truly refreshing and unique contour and trapezium design adds a modern touch to your bathroom.

真正令人耳目一新的独特轮廓和梯形设计给您的浴室增添了现代的格调.

2. The section of the embankment model was symmetric trapezium and the clay was its filling.

路堤模型采用梯形对称截面,并以粘土作为填料制作.

3. Hardness testing the depth and the trapezium of the carbonized layers and quench hardened layers.

炭化层和淬火硬化层的深度及梯度的硬度测试.

4. The results show, the special grinding chamber made up of trapezium screen can improve grinding capability.

通过对锤片式粉碎机进行粉碎理论分析和对比试验研究, 可知异型粉碎室能有效改善粉碎性能.