Because the mold is formed around a one-piece pattern (which does not have to be pulled out from the mold as in a traditional sand casting process), very intricate parts and undercuts can be made.
由于这种铸型是环绕整块型模形成的(无需像传统的砂型铸造工艺那样拔模)，能制作十分复杂的零件和浮雕。
The size structure and distribution pattern of Picea mongolica population on sand dune and their rerlationship to eco-environment are studied by size structure in place of age structure.
本文用种群大小结构代替年龄结构研究了沙地云杉种群的大小结构、分布格局和动态规律。
If a hollow casting is to be made the pattern will include extension pieces so that Spaces to accept the sand core are molded into the sand. These additional Spaces in the mold are termed core prints.
如果铸造空心铸件时模型上包含伸长杆便于在砂中放置砂芯的空间称为型芯座。
The gait and footprint distribution of a camel walking on sand, the regular changing pattern of motion parameters with the changing of walking speed and the slope Angle were studied.
研究了骆驼坡道行走的运动步法、足印分布，以及骆驼运动参数随速度、坡度的变化规律。
The dynamic pressure on pattern wall can reflect indirectly the compaction degree of sand during the course of filling and compaction of sand on EPC.
消失模铸造干砂充填紧实过程中，干砂对模型壁的动态压力可间接反映此处干砂的紧实程度。
Stream gradient and bed sand constituent are the main factors which is influencing on river pattern formation in the boundary condition.
河道比降、床沙组成是河道边界条件中影响河型形成的最主要因素。
At last. the failure pattern of sand-cobble deep excavation in Chengdu is researched, and then, the suitable retaining structure is given.
最后研究了成都地区砂卵石深基坑的破坏模式，以及最适宜成都地区砂卵石深基坑的支护形式。
The present invention discloses a technological process making pattern with visual effect similar to visual effect of sand-blast glass on gold (silver) cardboard.
本发明公开了一种在金(银)卡纸上制作具有类似于喷砂玻璃视觉效果的图案的工艺方法。
Then, the protein coated sand particles are dried and blown into a pattern mold to form a molded article without active cooling of the coated sand particles.
然后在没有有效冷却涂覆砂粒的情况下，干燥涂覆蛋白质的砂粒且吹入型模以形成一种模制品。
The authors try to research the classification, sequence structure and stacking pattern of the high-resolution sequence stratigraphy about river facies and further use them to study sand distribution.
由此力求建立适合于河流相沉积的高分辨率层序地层学层序划分方案、旋回结构及叠加样式，并将其进一步运用到河流相沉积体系的砂体时空展布的研究中。
The key basic technology in full mould casting process includes: material and formation of pattern, coating, vibratory fill of moulding sand as well as molten metal filling.
实型铸造法的关键基础技术包括：模样的材料及成形、涂料、型砂的振动充填、金属液的充填。
The physical pattern and mechanical property of residual binder film on the used sodium silicate sand under different temperature were studied by the numbers.
对不同受热温度下水玻璃旧砂粒上残留粘结剂膜的物理形貌及力学性能进行了较系统的试验研究。
The differences of the distribution of the moulding sand strength after compacting with pattern or not as well as resilient phenomenon and the mechanism of appearing "bridge" were analysed.
分析了无模样和有模样紧实后型砂强度分布的差异，以及回弹现象和“桥”的产生机理。
The way debugging the parameters of Vibrating table has been discussed through measuring the dynamic pressure of sand on pattern wall.
本文探讨了利用测量模型壁动态压力进行振动台参数调试的方法。
Currently vacant desert land, the rolling desert sand dune pattern has a change of level of 25m across the site.
目前此处位空旷的沙漠，沙丘散布在这块土地上，高差为25米。
Results showed that compared with sand casting castings, dimension precision and quality of lost pattern castings can be improved and rate of finished products can be increased up to65percent.
结果表明，与砂型铸件相比，消失模法生产的铸件尺寸精度及质量提高，工艺出品率提高到65%以上。
Sand core for the blade was made by hand drawing the pattern from core box. The way of core making is feasible on a medium scale production.
采用线切割的方法制作涡轮叶片砂芯芯盒，用该芯盒手工起模制作叶片砂芯。
Sand molds for the production of small and medium-sized castings are made in a molding box. The mold is made in two or more parts in order that the pattern may be removed.
中小型尺寸的铸件砂型是在一个砂箱中制造，砂型由两部分或更多部分组成，以利于模型的顺利取出。
The pattern of sand deposition is established. The abandoned channel track cross on inflection point. Curvature of the lateral acceleration gradually decreases and ends at the abandoned channel.
建立了侧积体沉积迭式：平面以废弃河道拐点为轨迹交点，向废弃河道方向曲率逐渐减小，终止于废弃河道。
Sand fill and compaction are essential factors of Expendable Pattern Casting(EPC).
砂 的填充及紧实是实型造型工艺技术中的关键因素。
Sand fill and compaction are essential factors of Expendable Pattern Casting(EPC).
砂 的填充及紧实是实型造型工艺技术中的关键因素。
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