查询词典 used sand

Recycled aggregate instead of natural macadam and sand is used to make recycled aggregate concrete and one of indexes-the capacity of resisting the freezing and thawing repellence of recycled aggregate concrete's durability with city, garbage melting slag is discussed.

为了研究城市垃圾熔渣细骨料以及废弃混凝土粗骨料再生利用的可能性，着眼于城市垃圾熔渣再生混凝土的耐久性能，试验以100%再生粗骨料以及垃圾熔渣细骨料替代天然碎石和砂子制备再生混凝土，探讨了城市垃圾熔渣再生混凝土的耐久性能之一抵抗冻融循环的能力。

Loose sand or ore used to line the hearth of a reverberatory furnace in preparation for pouring molten metal.

为倒入熔化的金属作准备的用来修整反射炉炉膛的松散砂子或矿渣。

The methods used here are proved be correct therefore are useful for the numerical simulation in unsteady incompressible flow with dual time step and preconditioning . Simulation to the sand saltation is carried.

文中所采用的双时间法的数值求解方法、边界条件的提法、差分格式的选取经验证是成功的，为双时间法与预处理方法的结合对低马赫数流动的数值计算积累了宝贵的经验。

The lakeshore sightseeing road is used by visitors for enjoying landscape of lakes and water. The wetland forest provides recreation facilities such as camping, roaming and climbing. The bathing lakeside is an ideal site for freshwater bath, sunbath and sand bath.

湖滨观光路供游客观赏湖光水色；湿地森林包括林间野营、林间漫步、林木攀藤等休闲设施；滨湖浴场波平沙细，湖水清澈，空气清新，是淡水浴、阳光浴、沙浴的理想场所。

With counterparts at home and abroad to conduct exchanges and cooperation, learn from each other, combined with the needs of different users, and strive to explore the development and production of a shot blasting machine, grinding machine, washing machine, sand blasting machines, abrasive belt machine, dryer and matching used chemical grinding liquid brightener, molding abrasive block, anti-rust agent, protective agent, cleaning agent and a variety of specifications for metal and non-metallic particles Shot, products sold at home and abroad.

并同国内外同行进行技术交流和合作，取长补短，结合用户不同的需求，努力探索开发生产了抛丸机、研磨机、清洗机、喷砂机、砂带机、烘干机及相配套使用的化学研磨液、光亮剂、成型研磨块、防锈剂、保护剂、清洗剂和多种规格的金属和非金属抛丸粒子，产品畅销国内外。

When silica fume concrete is used, mix design was made. At the same time, we should choose reasonably binder, sand, and coarse aggregate.

同时根据不同地区的环境条件，合理地选择水泥等胶体品种、适宜的骨料以及其它组成材料，包括掺合料与外加剂的选择。

The core sand binder can be characterized with higher strength,easy collapsibility,better gradation and l ess cost,hence it is particularly suitably used in non-ferrous metal castings.

它 的主要特点是：强度高、溃散性好、无毒、无污染、成本低，特别适用于低熔点的铝、镁合金及铸铁件的生产。

The casting coated sand used in laser rapid prototyping process was investigated with a number of experiments.

对铸造覆膜砂的激光快速成型进行了试验研究。

The company produces high-quality machine tools used casting resin sand molding, pleasing to look at.

本公司生产的机床全部采用优质树脂砂造型浇铸，外型美观。

Abstract］ Objective:To purify and characterize the major antigenic components of sand swimming crab,and provide theoretical evidences for the research of standardization of allergenic vaccine.Methods:The crude extract of Linnaeus was prepared using classical method, and electrophoresis of SDSPAGE was used to separate the proteins of each group.

目的：对梭子蟹变应原进行分离，鉴定其主要及次要变应原，采用蛋白纯化技术获取梭子蟹天然的主要变应原并进行鉴定，为标准化变应原疫苗的研制提供理论依据。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。