制砂,sand-making
1)sand-making制砂
英文短句/例句

1.The Development and Current Situation of Machine-Made Sand and thereof High Strength Concrete国内外机制砂和机制砂高强混凝土现状及发展
2.Production test on sandstone aggregate processing for Gongguoqiao hydropower station功果桥水电站砂岩制砂生产性试验研究
3.Study on Preparation and Properties of the C80 Manufactured Sand Concrete;C80机制砂混凝土的配制与性能研究
4.Preparation and application of C55 high-performance concrete with machine-made sand机制砂C55高性能混凝土的制备与应用
5.Research on Preparation of C20~C40 Self-Compacting Concrete Using Super-Fine Mountain Sand and Artifical Sand;利用特细山砂和机制砂配制C20~C40自密实混凝土的研究
6.Experiment analysis and application of steel fiber reinforced sprayed concrete with superfine sand and machine-made sand用特细砂和机制砂配制喷射钢纤维混凝土试验及应用研究
7.Feasibility Analysis on The Low Label Concrete Using Mechanism Sand Instead of Natural Sand低标号混凝土采用机制砂代替天然砂可行性分析
8.cord, foundry, used in the reparation of sand moulds翻砂型芯,用于制备砂型
9.Preparing Green Molding Sand by Using Returned Sand Containing Collapsed Resin-Coated Sand用混有溃散覆膜砂的旧砂配制湿型砂
10.food cooked and served in a casserole.在砂锅里烹制,并且用砂锅上菜的食物。
11.moulding board used in the preparation of sand moulds造型平板,用于制备砂型
12.core box, used in the preparation of sand moulds型芯盒,用于制备砂型
13.technology of making clayware handwork砂器工艺品的烧制技术
14.dresser ,grinding wheel, of base metal砂轮整形器,贱金属制
15.Cause and control of the crack and sugaring of the cement mortar screed-coat水泥砂浆找平层裂缝和起砂的成因及控制
16.Experimental research of compounding the cement mortar with high effective mortar plasticizer高效砂浆增塑剂配制水泥砂浆试验研究
17.A mixture of moist clay and sand, together with straw, used especially in making bricks and foundry molds.粘砂土湿粘土和砂子的混合物,带有稻草,专用作制砖和铸模
18.Comparison of slag corrosion resistance of MgO-CaO-C bricks prepared using fused doloma or sintered doloma低钙电熔镁钙砂与高钙烧结镁钙砂制备的MgO-CaO-C砖抗渣性对比
相关短句/例句

machine-made sand机制砂
1.Application of machine-made sand in ready-mixed concrete;机制砂在预拌混凝土中的应用研究
2.Study on durability of machine-made sand and fine sand high performance concrete;机制砂与天然细砂混掺配制高性能混凝土耐久性的研究
3.The influence of limestone powder as blending material on the performance low-grade and machine-made sand concrete;石粉对机制砂混凝土性能的影响
3)manufactured sand机制砂
1.Application of anti-corrosion concrete with manufactured sand in the project;机制砂防腐混凝土在工程中的应用
2.Effect of microfines in manufactured sand on properties of various strength grade concretes;机制砂中石粉对不同强度等级混凝土性能的影响研究
3.Strength and abrasion resistance of pavement manufactured sand cement concrete路面机制砂水泥混凝土的强度与耐磨性研究
4)paving units of waste sand废砂制砖
5)sandcontrol型砂控制
6)borax preparation制取硼砂
延伸阅读

磁耦合机制和沙兹曼机制  解释太阳系角动量特殊分布的两种理论。太阳质量占太阳系总质量的99.8%以上,但其角动量(动量矩)却只占太阳系总角动量的1%左右,而质量仅占0.2%的行星和卫星等天体,它们的角动量却占99%左右。太阳系角动量的这种特殊分布,是太阳系起源研究中的一个重要问题。1942年,阿尔文提出一种"磁耦合机制"。他认为,太阳通过它的磁场的作用,把角动量转移给周围的电离云,从而使由后者凝聚成的行星具有很大的角动量。他假定原始太阳有很强的偶极磁场,其磁力线延伸到电离云并随太阳转动。电离质点只能绕磁力线作螺旋运动,并且被磁力线带动着随太阳转动,因而从太阳获得角动量。太阳因把角动量转移给电离云,自转遂变慢了。    1962年,沙兹曼提出另一种通过磁场作用转移角动量的机制,称为沙兹曼机制。他认为,太阳(恒星)演化早期经历一个金牛座T型变星的时期,由于内部对流很强和自转较快,出现局部强磁场和比现今太阳耀斑强得多的磁活动,大规模地抛出带电粒子。这些粒子也随太阳磁场一起转动,直到抵达科里奥利力开始超过磁张力的临界距离处,它们一直从太阳获得角动量。由于临界距离达到恒星距离的量级,虽然抛出的物质只占太阳质量的很小一部分,但足以有效地把太阳的角动量转移走。沙兹曼也用此机制解释晚于F5型的恒星比早型星自转慢的观测事实。晚于F5型的恒星,都有很厚的对流区和很强的磁活动,通过抛出带电粒子转移掉角动量,自转因而变慢。然而早于F5型的恒星,没有很厚的对流区,没有损失角动量,因而自转较快。