在顶点两侧的内弧面上仍然有尖端的拱。

An arch having cusps in the intrados on either side of the apex.

youdao

典型的噬菌体有存储它们病毒DNA的空心头部和带有尖端的隧道式尾巴，此尖端表面有它们的目标细菌的分子。

Typical phages have hollow heads that store their viral DNA and tunnel tails with tips that bind to specific molecules on the surface of their target bacteria.

youdao

就像2 - D打印机，许多个人和小公司不需要很尖端的机器，如果他们有特殊需求的数码创意时，他们可以去3 - D打印处打印。

As with 2-d printing, many individuals and small firms may not need sophisticated machines, especially if they can use 3-d printing bureaus to produce their more demanding digital creations.

youdao

I said bronze, but actually the tip was usually iron, but it could be bronze as well.

虽然我说矛头是铜质的,但其尖端大多是铁质的,也有铜质的

耶鲁公开课 - 古希腊历史简介课程节选