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1·Scientists have dated sharp-edged flakes of stone found in the fine-grained sediments of a dry riverbed in the Afar region of Ethiopia to between 2.52 and 2.60 million years ago.

科学家们已经确定，在埃塞俄比亚阿法尔地区干燥河床的细颗粒沉积物中发现的具有锋利边缘的石片存在于252万至260万年前。

2·Chondrules and inclusions in Allende are held together by the chondrite matrix, a mixture of fine-grained, mostly silicate minerals that also includes grains of iron metal and iron sulfide.

阿伦德陨星里的陨石球粒和内含物是由球粒陨石基质结合到一起的；这是一种细粒混合物，主要包括铁颗粒和硫化铁的硅酸盐矿物。

3·Sandstones generally make good aquifers, while finer-grained mudstones are typically impermeable.

砂岩通常是良好的含水层，而细粒泥岩通常是不透水的。

4·With a thousand pains that vision's face was grained, yet no blood reached there from the upper ground. And no guns thumped or down the flues moaned.

惊恐中担心想象中的那些脸庞有了细纹，前方的战场上没有血流成河。没有枪炮的轰鸣，或者向下指着的冒烟的枪口下的哀求。

5·In the past couple of weeks a quarrel has illustrated the value to advertisers of such fine-grained information: Should advertisers assume that people are happy to be tracked and sent behavioural ads?

在过去几周里，一场争论说明了这种精细的信息对于广告商的价值：广告商是否可以认为用户愿意被跟踪并投放行为广告？

6·The bulk of Vulcanian deposits are fine grained ash.

大部分火山岩矿床为细粒灰岩。

7·Principles are large grained.

原则的粒度都较大。

8·Keep the communication coarse-grained.

保持通讯的粗粒度。

9·These elements tend to be fine-grained.

这些元素往往是细粒度的。

10·Not suitable for fine-grained aspects.

不适合细致的方面。

(1)fine grainedadj. 细纹理，细粒性分布

(1)coarse grained粗纹理的；粗颗粒的