参考例句

1. Quantitative measurements of one sort or another serve as the keystone of engineering practice.

   定量测定一种或多种成分是环境工程中的重要项目。

2. Social justice is the keystone of their political program.

   社会公平是他们政治纲领的基本原则。

3. We hope to see you become a keystone of the intellectual community.

   我们希望看到你们成为知识界的一块拱顶石。

4. Belief in a life after death is the keystone of her religious faith.

   她的宗教信仰的基础是相信死后有来生.

5. Check if the digital keystone function is active. Adjust if necessary

   检查数字梯形调整功能是否激活，必要时调整

6. Internal combustion engines--Piston rings--Keystone rings and half keystone rings

   GB/T14223-1993内燃机活塞环梯形环和楔形环

7. a pointed arch; usually has a joint (instead of a keystone ) at the apex.

   一种尖角拱；在顶点通常有一个接合点（而不是拱心石）。

8. ceramics keystone (excl. of siliceous fossil meals or similar siliceous earths) refractory

   陶瓷拱顶石（不包括硅质化石粗粉或类似硅质）,耐火的

9. The keystone in the crown of an arch.

   拱顶石位于拱顶的塞缝石

10. Belief In a life after death be the keystone of her religious faith

    她的宗教信仰的基础是相信死後有来生