The essence of concrete framework theory is to deduce the cement dosage of unit volume concrete from frame-mortar ratio, unit water dosage and deviated function of cement-sand ratio.
混凝土架构设计理论的实质，是通过架浆比、单位用水量以及砂灰比偏离三个参数推求单位水泥用量的过程。
According to microstructure analysis, cracks in bolster and side frame produced by Furan self-cured sand can be classified into shrinkage hot cracks and stress hot cracks.
显微组织分析表明，呋喃树脂砂生产摇枕、侧架所出现的裂纹按照产生原因分为缩裂纹和拉裂纹。
Nowadays, abaci are often constructed as a wooden frame with beads sliding on wires, but originally they were beads or stones moved in grooves in sand or on tablets of wood, stone, or metal.
如今，算盘往往建造在电线与滑动珠子木框架，但是最初他们是珠子或石头，在沙槽移动或木材，石头或金属片。
Compared with the prior art, the side frame whole sand core hanger has simple structure and convenient use for the side frame whole sand core.
同现有技术相比，本实用新型结构简单，对于侧架整体砂芯，使用方便。
Due to controlling by sedimentary facies strictly, the channel sand was the frame sand, Chang 23, Chang 22 and Chang 21 sands have a good inheritance.
其砂体展布严格受沉积相的控制，河道砂体为骨架砂体，长23、长22、长21期砂体具有较好的继承性。
A frame for holding a sand mold in a foundry.
砂箱铸造车间内保持砂模用的框架。
A frame for holding a sand mold in a foundry.
砂箱铸造车间内保持砂模用的框架。
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