会聚的英文：
assemble; flock together

参考例句：

Convergent [converging] electron lens
会聚式电子透镜

convergence test pattern
会聚测试图

A convex lens causes rays to converge on a single point, the focal point.
会聚透镜使光线会聚于一点，即焦点。

Railway lines seem to converge when one looks at them from a distance.
从远处看铁路好象会聚于一点。

On Superbowl Sunday, Americans hold parties to watch television and consume beer, pizza, and na-chos.
举行超级杯赛的星期天，美国人会聚在一起观看 比赛，喝啤酒，吃比萨饼和纳克斯。

Electron lens:any of various devices that use an electric or a magnetic field to focus a beam of electrons.
电子透镜:通过一个电场或一个磁场来使一束电子会聚的一种装置.

assemble是什么意思：
v. 装配，组合；集合，聚集，收集

ASSY [assembly]
组合件| 总承

Everyboby has the right of assembly.
每个人都有集会权。

The Council of Minister is responsible to the Assembly.
内阁须向议会负责。

flock是什么意思：
n. 畜群；人群，群众；同一教会团体的教徒；毛束，棉束，棉丛
v. 群集，成群结队而行

They are the flock of Buddhist.
他们是佛教徒。

The infected breeder flocks are quarantined from uninfected flocks
把感染群同非感染群隔离开来。

Birds of a feather flock together.
同类之鸟聚集在一起(物以类聚)。

together是什么意思：
adv. 在一起；以使接触；关系密切；一致；同时；接连...地
adj. 自信而妥实的

by the hour together
连续几小时|不断地

huddle together
挤作一团

cuddle together
紧贴着身子睡