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。

youdao

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。

youdao

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。

youdao

To some it seemed like the Justice Department had drawn a line in the sand against online poker and set a two-year time frame to go after industry players.

FORBES: Convicted Former Online Poker Billionaire Avoids Jail

The right front portion of the vehicle's frame was now on the ground, so I set my right foot out into the sand to get some footing, in order to pull myself and my left leg free.

NPR: Amputee Wounded in Iraq to Return to Active Duty