密集的英文：
concentrated
compressed

参考例句：

Serried ranks of soldiers
密集排列的士兵

Import-intensive
进口密集

Research-intensive
研究密集的

The black clouds concentrated into a dense mass.
乌云密集。

Labor-intensive
劳动密集的

Press about [around] sb.
拥挤[密集]在某人周围

DWDM(Denseness Wavelength Division Multiplexing)
密集波分复用

Dark clouds were gathering.
乌云正在密集。

There was a dense crowd at the match.
比赛场上有密集的人群。

conglomeration of signal aspects
密集的信号显示

concentrated是什么意思：
adj. 浓缩的；集中的；全神贯注的
v. concentrate的过去式和过去分词

concentrate troops at a strategic point
集中兵力于战略重点

Samarium europium gadolinium concentrate
GB/T8751-1988钐铕钆富集物

Ansar Concentration (detention) Camp
安萨尔集中（拘留）营

Industrial development is concentrated in the Northeast.
工业发展集中在东北地区。

It consists of a pair of concentric cylinder.
它由一对同轴的圆筒组成。

compressed是什么意思：
v. 压缩；精简

The compression of the wood is easily achieved.
木材压缩容易实现。

He compressed cotton into bales.
他将棉花压紧打成棉花包。

Compress this clay into a small ball.
把这块粘土压缩成一个小球。

Compressed gas cylinders should not be refilled except by qualified producers of compressed gases.
除了有资格的压缩气体生产商之外，不能重新灌装压缩气体钢瓶。

A gas is cooled by expansion and heated by compression.
气体膨胀时冷却，压缩时变热。