Villus height and mucosal thickness were measured under light microscope.是什么意思？

Villus height and mucosal thickness were measured under light microscope.

光镜观察并测定肠黏膜厚度、肠绒毛高度.

villus

n. 绒毛，长茸毛；

例句
A chorionic villus is a minute vascular projection on the fetal chorion.
绒膜绒毛是胎儿绒毛膜上的一种微小的血管凸出物.

height

n. 高度，海拔，高地，身高，绝顶，顶点；

例句
We've come full circle and dark-blue jeans are once again the height of style.
风水轮流转，时下最流行的又是深蓝色牛仔裤了。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

thickness

n. 层，浓度，厚（度），最厚的部分；

例句
Strain the mixture through a double thickness of muslin or cheesecloth.
用双层平纹细布或干酪包布过滤混合料。

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

measured

adj. 仔细斟酌的，慎重的，缓慢而又有节奏的；v. 量( measure的过去式和过去分词 )，测量，衡量，量出；

例句
Peace could come only gradually, in carefully measured steps. Even then, it sounds almost impossible to achieve...
和平只会逐渐到来，而且每一步都走得小心翼翼。即使那样，要实现和平听起来仍几乎不可能。

under

prep. 在…下面，在表面之下，在…的假定表面或掩饰下，少于，小于，在…情况下；adv. 在下面，少于，在水下，在昏迷中；adj. 较低的，下面的；

例句
...efforts to acquaint the public with their rights under the new law...
为使公众熟悉新法律所赋予的权利而作出的努力

light

n. 光，发光体，电灯，点火器；adj. 轻的，明亮的，浅色的，少量的；v. 点燃，照亮，用光指引；adv. 轻地，轻装地；

例句
...the light of the sunset's afterglow.
落日的余晖

microscope

n. 显微镜；

例句
The microscope contains a few hundred dollars-worth of electronic bits and bobs.
这架显微镜内有价值数百美元的电子元件。