词组短语
gravel layer砾石层；疏水石
sandy gravel砂砾石，砂质砾石
gravel pack砾石过滤层
gravel road碎石路
sand gravel砂砾石
同近义词辨析
pebble, stone, rock, gravel
这组词都有“石、石头”的意思，其区别是：
stone普通用词，泛指井然的或经加工的各类石头，可大可小。
rock普通用词，指构成地表最坚硬部分或突出于周围地面的巨大岩石，也可指石头或石块。
gravel集合名词，常指用于铺路的小石子和沙砾。
双语例句
用作名词(n.)
- The water is infiltrating the gravel bed.
水正渗透进碎石底层。 - A lonely fisherman stood on a tuft of gravel.
一个孤单的渔夫站在碎石丛中。
用作动词(v.)
- Depressions are usually caused by heavy trucks passing over the gravel.
路面下沉通常是由路过铺碎石的重型卡车引起的。
权威例句
Stable Channels with Mobile Gravel BedsBedload and size distribution in paved gravel-bed streamsPROFILE: Hungry Water: Effects of Dams and Gravel Mining on River ChannelsPeriphyton biomass dynamics in gravel bed rivers: the relative effects of flows and nutrientsEcosystem Metabolism, Disturbance, and Stability in a Prealpine Gravel Bed RiverEstablishment and Survival of Woody Riparian Species on Gravel Bars of an Intermittent StreamSediment supply and the development of the coarse surface layer in gravel-bedded riversContribution of the Hyporheic Zone to Ecosystem Metabolism in a Prealpine Gravel-Bed-RiverLarge‐scale natural gradient tracer test in sand and gravel, Cape Cod, Massachusetts: 2. Analysis of spatial moments for a nonreact...Sampling surface and subsurface particle-size distributions in wadable gravel- and cobble-bed streams for analyses in sediment trans...
