铸钢

The stern frame to be of welded fabricated steel construction integrated propeller bossing of cast steel.

艉框架为焊接组装式钢结构，与铸钢制的螺旋桨毂构成一体。

According to the characteristics of container sheet steel grade and corresponding mold powder for thin slab casting, the relations between the drawing heat quantity in mold and the physical/chemical properties of mold powder were analyzed.

针对集装箱板钢薄板坯连铸过程中拔热量偏低及不稳定问题，根据集装箱板钢种及相适应的结晶器保护渣特点，分析了结晶器拔热量与保护渣理化性能的关系，提出了相应的保护渣理化性能指标。

Moreover, the electromagnetic flux density and meniscus height increase in the form of chequerboard with increasing of slit number. The numerical results can exactly illuminate some experimental phenomena, and enrich the theoretical foundation of soft-contact continuous casting technology. In practice, a softcontact mold with slit number of 16 or 24 is recommended, the suggested frequency is around 20kHz, and the slit width is about 1mm.

结果表明：钢液对结晶器内的电磁场分布有很大影响；发现了磁感应强度和弯月面高度随电源频率增加而增大的频率范围、磁感应强度和弯月面高度随切缝数目增加呈&锯齿状&增大的规律；研究结果合理地解释了一些实验现象，完善了软接触结晶器电磁连铸技术的理论基础；建议在实际应用中采用分瓣数为16或24分瓣数的结晶器，电源频率应控制在20kHz左右，切缝宽度应控制在1mm左右。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。