Diatoms of this species, sometimes called "commuter" diatoms, remain burrowed in the sand during high tide, and emerge on the sand surface during the daytime low tide.
这种硅藻，有时被称为“通勤硅藻”，在涨潮时留在沙土中，在白天退潮时出现在沙土表面。
They then walked twice across the same sand surface while assuming a crouched stance.
然后，他们以假设的蜷曲姿态两次走过同一沙面。
Appearance white, more edges and corners, without powder product attached to quartz sand surface.
外观洁白，多棱角，无粉末积附于石英砂表面。
Hydraulic gradient in sand increases constantly and the maximum is occurred when the bottom of bucket arrives to the sand surface.
砂中水力梯度一直增大，极大值产生在桶底接触砂面时。
The research state and major results on the rate of sand transportation on a try sand surface are introduced based on some references in this paper.
本文根据有关文献，介绍了到目前为止对岸滩干沙表面输沙率的研究状况及主要成果。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两个罐子中间沙子的水分通过大罐的表面蒸发，使大罐外部的干燥空气开始流动。
The tufa towers rise like giant sand castles, peeking above Mono Lake's surface.
钙华塔升高得像巨型的沙堡，它正在窥视着莫诺湖的表面。
His study concluded that the rocks may be moved when they become embedded in sheets of ice forming at night on the surface of the sand.
他的研究结论是，当岩石嵌入到一大片于夜晚在沙子表面形成的冰中时，它们就可能会移动。
A subterranean flow of briny water could rearrange sand grains or alter surface roughness in a way that darkens its appearance.
地下水流的流动会使得沙粒积累，并使得表面变得粗糙，从而颜色更深。
On top of this mess, some sand was deposited, buried, lithified into rock, and brought back up to the surface yet again.
在这堆岩层的上面，一些沙子沉积、掩埋、固化成岩，然后又被带回到表面上。
The aquifer rises especially close to the surface in the Sand Hills region in the north of the state, near Mrs Luebbe's ranch.
在该州北部的沙岗地区、吕伯的牧场附近，含水层尤其接近地表。
Water in the sand between the two POTS evaporates through the surface of the larger pot, where drier outside air is moving.
两罐之间的沙子中的水分经由大罐的表面蒸发，使大罐外部的干燥空气开始流动。
According to the aluminum surface treatments can be divided into: ordinary spray, sand oxidation of alkali, alkali sand spraying, light wire drawing, champagne drawing, wood, electrophoresis.
根据铝材的表面处理可以分为：普通喷涂、碱砂氧化、碱砂喷涂、亮光拉丝、香槟拉丝、木纹、电泳。 。
Notice, wet cloth is classical furniture predators, because a wet rag in the water and sand mixture will be the formation of granular objects, is very likely to scratch the surface of furniture.
须知，湿布是古典家具的天敌，因为湿抹布中的水和灰沙混合后会形成颗粒状的物体，极有可能划伤家具的表面。
Stainless steel tube surface after sand blasting become rough and very evenly, can enhance the paint adhesion layer on the surface of stainless steel pipe.
不锈钢管表面经过喷砂变得粗糙又很均匀，能增强油漆层对不锈钢管表面的附着力。
Through the sand pill on the workpiece surface, eliminating stress, increase the surface strength, such as spring, machining tool and workpiece surface treatment such as plane blade.
通过砂丸敲击工件表面，消除应力，增加工件表面强度，如弹簧、机加工刀具和飞机叶片等工件的表面处理。
And sand can in workpiece surface junction with small rounded corners, make artifacts appear more beautiful, more precise.
并且喷砂能在工件表面交界处打出很小的圆角，使工件显得更加美观、更加精密。
The use of the whole resin, the electrostatic process of sand, sand sharp durable surface.
采用全树脂、静电植砂工艺，砂面锋利耐用。
The reason causing nodularization degeneration in surface layer of furan resin sand nodular iron castings was analyzed.
对呋喃树脂砂球墨铸铁件表层球化衰退原因进行了分析。
Veining defects have been effectively prevented and eliminated by improvement on gating system, especially by special additive to core sand and sinter coating on surface of sand core.
通过改进浇注系统，特别是采取在进、排气道芯砂中添加特殊抗脉纹添加剂及在砂芯表面涂刷烧结型涂料等工艺，有效地预防和消除了脉纹缺陷。
The surface is uneven and crumbly, so it allows soil or sand be filled in by 90%.
面层外观凹凸不平，材质疏松柔韧，留有90%以上的空间可充填土壤及沙粒。
Properties of the green sand and the surface quality of the casting may be decreased due to the resin sand of cold box cores entering the green sand system.
冷芯盒树脂砂进入湿型砂系统会使湿型砂性能和铸件表面质量下降。
Some deserts have a surface of sand.
有些沙漠表面有一层沙土。
The use of coal-dust with high lustrous carbon in molding sand can improve surface roughness of the castings.
光亮碳高的煤粉用于型砂，可降低铸件表面粗糙度值。
Quartz grain surface textures in coastal dune sand which is mainly derived from beach sand have features characteristic of both typical aeolian environment and inheritable and reformable beach sand.
本文通过对广东和海南海岸沙丘砂石英颗粒的扫描电镜分析，认为其表面结构特征，既具有典型的风成环境特征。
Sand blasting or swirling the mold surface with sand paper might help. Product design approval required before making this change.
喷砂处理或用可能用到的砂纸进行涡旋模具。在生产前进行正式和必要的产品设计。
The box adopts annealing or movement to eliminate stress, reduce deformation and ensure quality. The surface is subject to sand blasting to achieve elegant appearance.
箱体采用退火或移动消除应力，减少变形，从而保证质量，表面采用喷砂处理，从而使外观美观大方。
The box adopts annealing or movement to eliminate stress, reduce deformation and ensure quality. The surface is subject to sand blasting to achieve elegant appearance.
箱体采用退火或移动消除应力，减少变形，从而保证质量，表面采用喷砂处理，从而使外观美观大方。
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