The behaviour of this waste or broken rock is similar to that of a clean sand or gravel.
这种废石或碎石的行为与洁净的砂石或砾石相类似。The Camarasaurus had a very good digestive system; it would swallow gizzard stones to help grind up the tough vegetation that it would eat.
卡玛拉龙有个非常强壮的消化系统，它会吞下砂石来帮助消化胃里其它坚硬的植物。It was more than thirty kilometers from our town to the county and the road was paved with sandstone .
从小镇到县城有三十多里的砂石路，非常难走。Here he had the opportunity of learning at least the rudiments of freestone working.
在这儿，他至少有机会学一学用自由砂石作原料而工作的初步知识。A jia yu level, you look, eyeful is endless sand, the only a clump of yu, a cluster with fully point the awaken of spring.
一出嘉裕关，你望吧，满眼是无边的砂石，遍地只有一丛一丛的骆驼草，略略透出点春意。The equipment for filtering through the sandstones is a pipe-trough type filter, and a sandstone filter layer is arranged in the filter.
所说的砂石过滤所用的设备，是一种管槽状的过滤器，过滤器里面设有砂石过滤层。An innkeeper scrubs his steps, sits and reads a paper, leans against the sandstone wall and shuts his eyes. The streets are sleeping.
一个旅店老板刷过台阶，坐下读报，靠着砂石墙，闭上了眼，街市睡了。A bed of gravel on the outside of corners designed with the aim of bringing cars that fall off the circuit to a halt.
在弯道外侧一般要设计砂石带，可以使从赛道甩出的赛车停止下来，总的说就是起到缓冲作用。See how many different surfaces you can run on in a week: Asphalt, gravel, trail, grass, track, treadmill, beach.
看看一周之内你能跑多少不同的地面：柏柏油马路、砂石小路，羊肠小道、草地、运动跑道、海滩沙地等等。