您要查找的是不是：
- Salt from the sea had encrusted on the dry sand. 海水中的盐分在乾燥的沙子上结成硬皮。
- The little dune is formed with loose dry sand by wind. 这个小沙丘是由风吹来的干沙子形成的。
- dry sand core 干砂型心
- Salt from the sea have encrust on the dry sand. 海水中的盐分在乾燥的沙子上结成硬皮。
- Why does wet sand look darker than dry sand? 为什么湿沙比乾沙深色?
- Why is wet sand darker than dry sand? 为什么湿沙总比乾沙深色呢?
- Hence, wet sand looks darker than dry sand. 因此,湿沙看来较乾沙深色。
- Fill three cups with equal amounts of dry sand, gravel or soil. 将等量的干燥沙子、砂砾或土装入三个杯子中。
- DP2、 D4 are mainly used for ramming sand core of small mould in foundry practice, whereas. D4型气动捣固机，主要用于铸造行业捣固砂芯或小砂型。
- Touch the ohmmeter probes to the two wires sticking out of the dry sand. 将欧姆表探针连接到插入干燥沙子中的两条电线上。
- The relationship between calcium stearate and sand core as well as casting quality of cylinder head of diesel engine for example ... 同时,以柴油机缸盖砂芯和铸件为例,分析了硬脂酸钙与砂芯和铸件品质的关系。
- In case of fire, use sodium carbonate or dry sand (never use water). 着火时使用碳酸钠或干沙子灭火（禁止用水）；
- Dry sand at the scene of thionyl chloride liquid and cover to cover. 现场用干沙对氯化亚砜液体进行覆盖和遮掩。
- Teh suitable diluent and dilute sodium silicat were studied and developed. The productive testsshowed that the sand core possessed good strength and collapsibility. 通过对稀释水玻璃特点的研究，试验选定了一种稀释剂，研制出一种性能良好的稀释水玻璃，生产验证表明，用其制造的型芯具有良好的溃散性。
- Dry sand absorbs water. 干沙吸收水份。
- Direct shell-making method was adopted in producing narrow flow-channel close impeller to avoid using water-soluble sand core and to reduce production cost. 生产封闭式窄流道叶轮,为降低成本,可避免使用水溶砂芯,采取直接制壳的方法。
- A mass of dry sand placed within a mold to provide openings or shape to a casting. 型芯铸造模型中为铸件提供出口和形状的干沙块
- Replacing quartz sand with mullite sand, the high temperature intension of sand core can be improved, the burr defect is avoiding, the quality and life of track plate and pin are improved. 利用莫莱石砂替代石英砂生产履带板砂芯可提高其抗高温开裂强度，消除履带板销孔的脉纹铸造缺陷，提高履带板与履带销的质量与使用寿命。
- Description: foundry machine. castings. sand casting. sand mill. moulding machine. sand core machine. shot blasting machine. sand treatment equipment. sand box. vibrator. spray gun. hardware. valve. 铸造设备.;铸造器具
- It shows that, on average, it takes a much longer path for light in wet sand to come out left than in dry sand right. 可以看到,光要从湿沙里走出来通常需要走较长的路,路径愈长,光被吸收的机会便愈大。
