The cells of this substance are closely packed together.

这种物质的细胞聚得很紧密。

Atomic nuclei containing several closely packed protons exist at all.

包括几个紧密挨在一起的质子的原子核确实存在.

“There were many species in cages closely packed together,” says Yi.

“许多物种在笼子里紧紧挤在一起”，他说。

It was also found thatthere are plaques without closely packed polyg…

同时也观察到在较大的缝隙连接中有空斑存在。

The molecules in such liquids are closely packed, but loosely arranged.

这种液体分子紧密地挤压在一起，但是又排列松散。

In fact the wagon was so closely packed with boys of all ages that it looked like a box of sardines.

事实上，车上挤满了各个年纪的孩子，看起来活像一堆沙丁鱼。

The mass consists of closely packed pyloric gland-type tubules or glands lined by a single layer of columnar or cuboidal epithelium.

肿瘤由拥挤的、紧密排列的幽门腺型小管或腺体组成，被覆单层柱状或立方形上皮。

Inthe disordered regions, water molecules are more closely packed, makingthem denser than regions where the molecules are arranged in atetrahedral structure.

在无序区域，水分子之间更为紧密，使他们的密度比以四面体结构排列的区域高。

The individual cells are closely packed with no apparent intercellular spaces, and conduct water and solutes from the vascular bundle to the surrounding tissues.

单个细胞连接的十分紧密，基本没有留空隙，从维管束中运输水分和可溶性物质到其他的组织中去。