| 1. | Press car bodies out of sheets of steel .
把钢板冲压成汽车车身。 |
| 2. | The ram jet is the simplest of the three .
冲压喷气发动机是这三种最简单的一种。 |
| 3. | High pressure is used to stamp articles made of metal and plastics .
高压还用来冲压金属和塑料制成的物品。 |
| 4. | The ram jet provides a series of hard thrust, with coasts in between .
冲压发动机产生一系列的强推力，而在两次推力之间有间断。 |
| 5. | The rockets give the planes and missiles enough speed to make the ramjet engine workable .
这种助推火箭为飞机和导弹提供足够的速度，以使冲压式喷气发动机可以开动工作。 |
| 6. | The dynamic performance of a ram air system will vary with mach number and altitude and this tends to follow the aerodynamic characteristics of the missile .
像导弹空气动力特性一样，冲压空气式系统的动态特性随马赫数和高度的变化而变化。 |
| 7. | To do the set - up and changeover of the stamping die
完成冲压品番的更换及设置。 |
| 8. | General specifications of sheet metal stamping parts
金属冷冲压件.通用技术条件 |
| 9. | Tools for pressing - guide plates - u - and v - blocks
冲压工具.导板. u形和v形块 |
| 10. | Press tools - guide pillars - type a , straight pillars
冲压工具.导柱. a型直导柱 |
