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- Stars are as thick as the sand grains on a beach. 恒星像海滩上的沙子那样密集。
- Some sand grains jammed the door. 有些沙子把门卡住了。
- We must screen the sand grains out of the silver sand. 我们要把细沙中的沙粒筛出去。
- Let it become the most concealment sand grain in our heart bottom. 让它成为我们心底最为隐蔽的沙粒。
- For sand grains in water, the change in the direction of light is smaller than in air. 在水里的沙,光的方向变动比在空气小。
- If we could actually see the path described by a particle, such as a sand grain in the rock. 假如实际上我们能看见由一个象岩石内部的砂粒这样的微粒绘出的轨迹，
- A wind of a velocity of 5 m/s cannot carry with it sand grains whereas one blowing at a velocity of 5~8 m/s stirs up ripples on the surface of the sand sea. 每秒5米以下的风速是不会携带沙粒的。而每秒5至8米的风却会激起沙海的涟漪。
- The reason you don't sink into ordinary sand is because the sand grains rest against each other in an interlocking pattern. 你不会沉入普通是沙子是因为沙子在连锁的模式下其齿轮产生的静电相互对抗。
- If we could actually see the path described by a particle,such as a sand grain in the rock. 假如实际上，我们能看见由一个象岩石内部的砂粒这样的微粒绘出的轨迹。
- When a sand-carrying blast loses 20% of its velocity in front of and behind the net,the sand grains carried will fall one after another,terminating its risky travel. 当运载着沙尘的疾风在网前网后失掉20%25的速度时，所携带的沙粒便纷纷坠落，终止了它们危险的旅行。
- On this scale the moon would be scarcely more than a dust speck about 1cm from the sand grain. 照这样的比例尺度，月球将是仅离小沙粒一厘米远的一颗尖埃微粒。
- When a sand-carrying blast loses 20% of its velocity in front of and behind the net, the sand grains carried will fall one after another, terminating its risky travel. 当运载着沙尘的疾风在网前网后失掉20%25的速度时，所携带的沙粒便纷纷坠落，终止了它们危险的旅行。
- With high magnification of microscopy,a lot of petroleum inclusions were found,which occur in the fissures of sand grains and authigenic minerals in the source rock. 用高倍荧光显微镜观察,在这些暗色泥岩的砂质碎屑矿物和自生矿物中,发现丰富的微石油包裹体群。
- For thermally reclaimed molding sand due to its low angularity and improved shape, more, larger area and stronger bonding-bridges are easily formed among sand grains. 热再生砂的角形系数降低,粒形得到了改善,砂粒之间更易形成较多、较大的粘结桥;
- A tenebrionid beetle, Onymacris rugatipennis, it buried itself one moment and then rushed forth again, as if skating along the surface of infinite sand grains. 我们还看见一种拟步行虫（Onymacrisrugatipennis）一下子把自己埋进沙地，一下子又向前冲，好像在无垠的沙地上溜冰，动作之快，我几乎来不及抢拍牠的模样。
- Installed on the inlet sta nd pipe of the metering separator, the desander adopts rotary sedimentation and gravity-velocity subsidence realizing the settlement of the sand grains. 它装于计量分离器的进口立管上,采用旋转沉降和重力速度沉降原理来实现砂粒沉降。12座计量站应用表明,这种沉砂器原理可行,结构简单,沉砂效果显著,再未出现流量计砂卡,单井计量率达100%25。
- The sea gull unfolds pair of wings , sliding out a consummate arc in azure sky, exquisite sand grain of white turns motion over and over under dark blue seawater outwash. 海滩边的鹅卵石被洗得格外明净。
- Uranium coats sand grains. 铀被覆盖在砂岩颗粒上。
- Taking Sunan mining area as an example, the characteristics of sedimentary faces is obtained by analyzing systematically the topography before sediment, the degrees of roundness, the sizes of sand grains and sources of materials. 摘要以宿南矿区为例，通过对“四含”沉积物沉积前的古地形、沉积物的颗拉大小与磨圆度、物质来源，得出沉积相特徵。
- A rigorous physical test performed by Bagnold proved that dust can fly up to 3000 m high over great distances with wind,while sand grains can move at most by means of saltation near the land surface. 拜格诺用严格的物理实验证明，尘粒能随风远走高飞，而沙粒却只能在地面附近跳跃前进。
