These may range from coarse silt to sand or pebble size.
这些颗粒的大小变化范围，从粗粉砂级到砂级或细砂级。
These particles range from coarse silt to sand or pebble size.
这些颗粒的大小变化范围是从粗粉砂级到砂级或细砂级。
And this graphite pebble is about the size of a billiard ball.
这个石墨块是和，台球的大小一样。
Each "pebble" in a pebble-bed gas reactor is a graphite fuel sphere the size of a tennis ball.
在一个球形气体反应堆里的每一个“小球”都是一个网球大小的石墨燃料球。
And what I do is, I select a hard stone hammer, in this case a quartzite pebble about the size of a cricket ball, and I elect to hit it in one place - and this is where I start to knap.
我要做的就是，选择一块够硬的石锤，这次我选这块是个头有板球大小的石英岩卵石。先挑个地方锤下去，接着我就开始从这地方开始凿了。
The paper describes the building-up process of a large size rotary jet slip-casting pile by quick pore-forming in bulky iron slag layer and in river banks floated pebble bed.
阐述了在松散渣铁层及河岸漂卵石层中快速成孔，形成较大直径的旋喷注浆桩的过程。
The paper describes the building-up process of a large size rotary jet slip-casting pile by quick pore-forming in bulky iron slag layer and in river banks floated pebble bed.
阐述了在松散渣铁层及河岸漂卵石层中快速成孔，形成较大直径的旋喷注浆桩的过程。
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