来自grain, 谷物，颗粒。即颗粒状的纹理。

1. Microscopically the ores are medium grained to amorphous.

显微镜下,矿石为中粒至非晶质.

2. The only local coarse - grained sand - stones in the uppermost part are important for uranium.

仅最上面局部的粗粒砂岩对铀是有利的.

3. Fine - grained clay may settle out in the sheltered bays on the outer sides of the levees.

细粒粘土可以沉积在天然堤外侧的隐蔽湾中.

4. The white, close grained wood of one of these trees.

新西兰木材, 木身呈亮白色.

5. A finer - grained lock has been converted to a coarser - grained lock.

较细粒度的锁已转换为较粗粒度的锁.