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flat-end造句

"flat-end"是什么意思   

例句与造句

  1. Interior six - angled flat - ended fixing screw
    内六角端平紧定螺钉
  2. Flat - ended keys for deck screw caps for filling and sounding pipes
    填充和测深管用平头螺帽的平端键
  3. Square headed flat - ended fixing screw
    方头平端紧定螺钉
  4. Slotting flat - ended tightening screw
    开槽凹端紧定螺钉
  5. Testing of asphalt ; indentation testing using a flat - ended indentor pin
    沥青的试验.使用平端压头针的刻痕试验
  6. It's difficult to find flat-end in a sentence. 用flat-end造句挺难的
  7. Under the condition of penetration by flat - ended projectiles , the noses of flat - ended projectiles keep integrity when the velocity is under the normal projectile velocity
    当弹速处于亚弹速范围时,弹头都保持了完好,此时弹体也视为刚性弹。
  8. When targets penetrated by flat - ended projectile , shear deformation along the penetration direction appears , at the same time compressive deformation also appears in the material that is in front of the projectile . the compressive deformation begins at the back surface of the target and spreads inward
    钝头弹侵彻下,侧壁材料发生轴向剪切变形,同时,弹体前方的材料发生压缩变形,压缩变形首先在靶板背表面开始,而后自背表面向靶内传播。
  9. Targets made of ship - building steel , which is concerned , were penetrated by conical and flat - ended projectiles . the damage and failure behaviors of targets have been studied systematically by micro - hardness , metallography and scanning electron micrography . the results show that the ductile hole failures and back - surface petal failures are achieved when targets penetrated by the conical projectiles
    本文以某船用钢为研究对象,运用弹板侵彻试验及显微硬度、金相显微镜和sem等分析测试手段,研究了靶材在侵彻过程的物理变化和损伤规律,从而对尖头弹和钝头弹侵彻船体钢的物理过程有了较全面的了解。
  10. According to the land forces criteria ( u . s ) for ballistic limit and by using the method that the ballistic limit is equal to the average of two velocities that are partly penetration velocity and completely penetration velocity respectively , the ballistic limit is determined targets penetrated by both conical and flat - ended projectile , the result can be in the table
    结果表明,不论是尖头弹侵彻还是钝头弹侵彻,这两个板厚的船体钢的弹道极限均未超过常规弹速范围,一般的枪炮可轻易达到这一范围,因此从这个意义上说,这两个板厚的船体钢的抗侵能力不是很理想。

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