1·Rolling grains of sand hit each other "like billiard balls, " said Kirby, and briefly fly into the air.
沙砾“像桌球”一样互相撞击翻滚，然后被风吹到空气中。
2·Instead, it secretes a glue and USES this to stick bits of sand together to form its casing, in the way that a freshwater caddis fly larva does.
堆沙蠕虫分泌出一种胶状物将沙石粘合在一起形成壳装，这一点类似于淡水石蛾的幼虫。
3·It took photographer Joel Sartore three months to get the permit required to capture, photograph, and release a single fly from its threatened sand dune habitat in California.
摄影师花了3个月的努力，才获得捕捉许可证，拍摄完毕，把它放回栖息地加利福尼亚州的沙丘。
4·We fly fly, and flew to a small river. Oh, here, the river really clear, many hearts tiny grains of sand can be seen clearly.
我们飞呀飞，飞到了小河边。呵，这里的河水真清澈，一颗颗细小的沙粒都可以看得清清楚楚。
5·The formation of fly sand is determined by the quantity of the liquid phase of clinker and the property of the liquid phase (the surface tension mainly).
飞砂产生与否主要取决于熟料液相量和液相性质（主要是表面张力）。
6·Fly ash can be used to make cement concrete. It can save cement and sand.
粉煤灰可用于水泥混凝土的制备，可节约水泥和砂。
7·Fly-ash is basically silt, silt and clay-free and thus the nature of a similar sand.
粉煤灰基本上属于粉土、粉砂性的无粘土，因而具有类似砂土的性质。
8·A part of fly ash might be replaced with stone powder in high-paste RCC, but the content of stone powder in crushed sand should be not more than 20%.
所以，在富胶凝材料碾压混凝土中可以用石粉取代部分粉煤灰，但人工砂中的石粉含量不宜超过20%。
9·Industrial solid wastes utilized in dry mix mortars mainly include blast furnace slag, fly ash, waste rubber powder, waste expanded polystyrene granule, steel slag and tailing sand.
本文主要论述了矿渣微粉、粉煤灰、废橡胶粉、废弃聚苯颗粒、尾矿砂等工业固体废弃物在干混砂浆中应用的研究进展。
10·Secondly, models with different backfill-material such as argil fly-ash concrete, soil, sand, grit and lime-stabilized soil were experimented.
其次，进行了陶粒粉煤灰混凝土、粘性土、风积砂、砂砾和石灰土等几种材料的台背回填离心模型试验。