small hollow nail 小空心钉
small hollow block 小型空心砌块
small hollow blocks 小型空心砌块
small hollow concrete 混凝土小型空心砌块
small hollow concrete block 混凝土小型空心砌块
concrete small hollow block 混凝土小型空心砌块
concrete small hollow blocks 混凝土小型空心砌块
small hollow block structure 砌块结构
small hollow concrete blocks 砼小型空心砌块
fly ash small hollow block 粉煤灰小型空心砌块
When a tree becomes hollow or part of it becomes dead, it provides a home for small animals and is a source of food for many other animals.
当树中空或部分死亡时，它为小动物提供了一个家，也成为了许多其他动物的食物来源。
It works by shining a hollow laser beam around small glass particles, as Inside Science explains.
它使用中空的激光波束移动微小的玻璃粒子。
Generally speaking, hollow shaft type of small volume, but the amount of magnetic force (magnetic power) also stretch out shaft type than for small.
一般而言，空心轴式的体积较小，而所需磁化力(磁动力)亦比伸出轴式为小。
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