1. The drawing die structure of shirt oil bottom shell is introduced, the surrounding border of shirt oil bottom shell needs to be drawn at concave die and blank holder.
    介绍了在冲孔落料后用可滑动折弯凹模与可滑动折弯凸模相结合对薄片形件进行弯边，模具结构简单、巧妙，对同类产品具有一定的借鉴作用。

2. Resist very difficult, no air, shell is insufficient, supplies difficulties, & political supplement is not seasonable, air defense facilities basic is blank.
    抗美援朝很艰难，没有制空权，炮弹不足，物资供给困难，兵源补充不及时，防空设施基本是空白。

3.

3. Calculation of blank shell plate and shape preparation for combined type of spherical tank
    混合式球罐球壳板幅计算及成型加工

4. blank shell的意思

4. Calculating Blank of Shell-like Parts Based on Triangular Mesh System
    基于三角形网格的坯料计算方法

5. The effects of superheat on the shell''s thickness leaving mold, the surface temperature of casting blank, the shell''s thickness in casting solidification and the length of liquid core were simulated.
    进行了过热度对出结晶器坯壳厚度、方坯表面温度、铸坯凝固过程中坯壳厚度和液相穴的影响的模拟分析研究。

6. blank shell什么意思

6. According to the laying of the actual location of the thermocouple, using different combinations of space achieves a regional test based on transverse network, in order to identify the shell blank space in the breakdown lane on the expansion.
    根据热电偶的实际埋设位置，采用不同的空间组合方式，实现了以横向网络为主的区域判别法，用来识别粘结坯壳破裂线在空间上的扩展。

7. Analysis of Shell Stress and Dilatancy Distortion in the Process of Beam Blank Continuous Casting
    异形坯连铸坯壳应力与鼓肚变形分析