砂的

With the development of metal casting technology, sand core is playing a more important role in modern casting production.

铸造技术的发展使得砂芯在铸造生产中的作用越来越大，被称为&精确砂型铸造&的组芯造型对砂芯的尺寸精度要求非常高。

The obtained SWCC shows that the results obtained from the two methods can be considered as consistent.4. By using a suction-controllable oedometer for unsaturated soils, a series of wetting tests at constant net stresses and compression tests at different constant suctions are performed on compacted sand-bentonite mixtures to study the coupled hydraulic and mechanical behaviour of unsaturated expansive soil.

两种方法测到的SWCC曲线有较好的一致性。4、采用非饱和土固结仪对膨润土与砂混合物进行吸湿试验及常吸力下的压缩试验，研究了膨润土与砂混合物的水力和力学特性。

In the phase of fine reservoir description, the barrier beds and interbeds have four hierarchies, including the barrier beds between sand groups, between subzones, between single sand beds, and the interbeds in single sand beds.

认为在精细油藏描述阶段，隔夹层有砂层组间的隔层、小层间的隔层、单砂层间的隔层及层内的夹层4个层次。

Part of Canada's openness to Chinese investment stems from the sheer cost and complexity of extracting oil from tar sands, which is only profitable when oil prices are high.

加拿大对中国投资的开放部分源于从沥青砂中提取石油的高额成本和复杂技术。只有在石油价格高企的时候，开发沥青砂才是有利可图的。

The tidal flat along Bohai Gulf extends from Haihe River Mouth to Dakou River. According to the results of field survey, the inter-tidal flat has obvious zonation. From the shore seawards, 4 zones can be identified, and they are depression polygon, inner depositional, erosional and outer depositional zones, and the associated sediment types are mud and clayey mud, mud, alternating laminae of silt and mud, and coarse silt, respectively.

渤海湾潮滩海岸从海河口以南到黄河三角洲北缘的大口河以北，据野外调查发现，这里的潮间浅滩具有明显的分带性，从岸向海可以分为四带，即龟裂带、内淤积带、滩面冲刷带、外淤积带，相应各带的沉积物为：淤泥与粘土质淤泥、淤泥、粉砂与淤泥互层、粗粉砂。

Joint enterprise NEW HONGTAI MACHINERY CO., LTD.(QINGDAO HONGTAI WOODWORKING MACHINERY MANUFACTURE CO., LTD.) professions manufacturing Wide Sander, Spiral Cutter head Planer Sander and series precise slide saw CD-OWADA. They can process Plank Material Artificial Marble lacquer of width with 1600mm, 1300mm, 1000mm, 950mm and 650mm. Import parts make the saw.

中外合资新鸿泰机械有限公司（原青岛鸿泰木工机器制造有限公司）是专业制造宽带砂光机、刨砂机、精密推台锯的厂家，产品应用于宽度为1600mm、1300mm、1000mm、950mm、650mm等规格尺寸的板材、人造大理石、油漆等材质的表面加工，另有采用进口部件组装的精密推台锯。

Background: China is abundant in quartz sand.

一、项目背景：我国的石英砂资源较为丰富，但石英砂在加工过程中产生的尾泥尾砂，不仅占用大量的土地，而且对沿河流域的生态环境造成了严重影响。

Through laboratory tests on sandy pebble soil by using the dynamic triaxial tests,we studied the influence about dynamic modulus and damping ratio under the conditions of different vibration frequency and consolidation stress ration.

通过饱和砂卵石土室内动三轴试验，将不同振动频率对动模量和动阻尼比的影响进行了较为细致的研究，分析了饱和砂卵石土的动力特性随振动频率的变化规律。

This research deals with the mechanical mechanism of expansion of steel slag sand mortar through the measurement of strength and expansion rate. The results indicate that the improvement of matrix strength could lower the expansion rate of steel slag sand mortar, extend the cracking age, reduce the degree of cracking but couldn't prevent the specimens made with steel slag from crack.

通过力学性能和80℃水热加速养护条件下砂浆棒自由线性膨胀率实验，结合SEM等微观测试技术，分析探讨了不同基体强度对钢渣砂砂膨胀行为的影响及水热养护不同龄期的力学性能与自由线性膨胀率的关系，从力学角度阐述了SSM膨胀破坏的机理。

The drained behavior of Hokksund sand under low confining pressure was studied through static triaxial test, and the samples were prepared through the dry sedimentation method. The test results were corrected through the membrane effect which is often neglected under high confining pressure, the correction to axial stress for dense sample under a cell pressure of 10 kPa is equal to 12%.

采用干样沉降法制备样品，选用静三轴仪对松砂和密砂样在10kPa 至100kPa的低围压下的排水行为进行了实验研究，并对实验结果作了橡皮膜校正，在围压为10kPa的密砂实验中，轴向应力的校正值可达到12%。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。