The bulk of Vulcanian deposits are finegrained ash.
大部分火山岩矿床为细粒灰岩。
2
We refer to this as finegrained administrative security.
我们将此称为细粒度管理安全性。
3
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?