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- natural river sand 天然河砂
- They hold river sand, pieces of iron and wood charcoal. 在一段很长的时期内，毒井中的水可能会导致致命的癌症。
- To dig the river sands, jump in the field. 落单幼时,却情尚真。河里挖沙,田间跳步。
- While working in the shadow of the iron bridge, he tried his luck by dipping a pan into the river sand . 当他在铁桥下阴凉处干活时，随手把淘金盘浸入河沙中淘了淘，想碰碰运气。
- The medium mixed by river sand and Danmark commercial medium in a ratio of 1 to 2 gave the highest average adventitious roots of 5.2 pieces each. 河沙与丹麦基质(1?2)的扦插苗平均不定根数量最多;达到5.;2条/株;
- The results show that although the artificial wafer area has been connected with the natural river, the water quality presents obvious deterioration. 结果显示,尽管人工水域考虑了与天然河道的连通,但水质仍出现较明显的恶化。
- Mother would accumulate the river sand into a large heap drying in the open and then riddle with a screen before selling to the building boss. 母亲需要把捞上来的河沙堆积成一个巨大的沙丘，在空气中晾晒干后，用筛子再筛一次，然后才能卖给建筑商。
- In the light of water surface curve computing formula of constant non-uniform flow in natural river,using iterative function of Excel soft ware the wr. 在天然河道治理、防洪规划和水利工程建设中,需要确定河道水面曲线。
- The middle fan sand in Es3, the bioclastic beach bar at the bottom of Esl, the river sand in Ed formed very best reservoir. 东营组为前扇三角洲亚相过渡到扇三角洲前缘亚相到扇三角洲平原亚相再到辫状河沉积的递进模式。
- The only natural river of Beijing, Wenyu River, passes through HSLC's northern side, becomes one of its beautiful scenery lines. “温都水城”由澳大利亚设计集团设计的技术先进、功能齐全的综合假日酒店，主要经营项目有水空间、水城国际大酒店、室外温泉及停车场等。
- Such walls and roofing / ceiling do not require cement plastering by which scarce materials like river sand and water can be saved. 这样的墙板和顶板/天花板不需要水泥抹灰，由此，河沙和水等稀缺材料能得以节省。
- In addition to natural rivers, the Chinese working people have dug many canals. 除了天然的河流之外, 中国劳动人民还开挖了许多运河。
- They hold river sands, pieces of iron and wood charcoal. 这两个容器里装有河砂，铁块河木炭。
- China is rich in extra fine sand, such as river sand in the Changjiang River, Yellow River and Zhujiang River, blow sand in the area of northeast China and Xinjiang. 我国有着丰富的特细砂资源,如长江、黄河、珠江等流域的河砂,西北和新疆等地的风积砂几乎遍布全国各地。
- Beijing North first floating entertainment center of the Longtan River dates back to ancient times, ups and downs, Beijing is the only natural river rafting project. 京北第一漂娱乐中心的龙潭河源远流长，起伏跌宕，是北京地区唯一自然河漂流项目。
- Also some friends said that I here river sand ferri also carry gold, I already sell the yellow sand, also wants the iron sand, but also wants Jinsha, can be good? 还有朋友说，我这里的河沙含铁也含金，我既卖黄沙，也要铁砂，还要金沙，能行吗？
- The results show that the extracted river system matches well with the natural river system by means of adding the elevation data and digitizing main river with pseudo river. 结果表明,在盆地区域添加能反映微地形变化的数据点,并将河谷中出现伪河道的干流河网数字化,能生成反映流域实际情况的模拟河网。
- The county rates, "the cattle toll booths river sand," is neither law enforcement authorities, nor have law enforcement entity, why dare to openly illegal, so cattle do? 息县这个“最牛河砂收费站”，既不是执法管理机构，也不具备执法主体资格，为什么敢公然违法、如此之牛呢？
- A new flow injection system, air-segmented FIA was proposed for rapid and sensitive determination of trace vanadium in tap and natural river waters based on its catalysis of oxidation of gallic acid by bromate. 应用空气整段间隔流动注射法与改进的钒-溴酸钾-没食子酸催化动力学反应体系相结合,建立了测定天然水体中痕量钒的催化动力学光度FIA法。 通过使用一个自制的进样阀,使样品带在反应管道中的留存时间得到延长,加热允许温度得到提高。
- Crawfish are harvested from both wild habitats (natural rivers, bayous, swamps, and lakes) and controlled, managed crawfish farms. 小龙虾盛产于野生栖息地(如自然河流、河口、沼泽和湖泊)以及加以控制和管理的养虾场。
