| 1. | Every powder produces erosion or bore wear to some extent .
每一种无烟药都会有某种程度的烧蚀或炮膛磨损。 |
| 2. | Study of reducing erosion of rail electrode surfaces in railgun
减轻轨道炮炮膛烧蚀的研究 |
| 3. | A measuring method for the taper of bore
一种火炮炮膛锥度的测量方法 |
| 4. | Two - phase flow model and simulation of solid propellant electrothermal chemical gun
固体工质电热化学炮膛内两相流模型与计算 |
| 5. | If we take out several measuring points along the bore axis and work out the amount of bore wearing , we can consult and calculate the muzzle velocity reduction of the piece by reference of the curve board
沿膛轴方向取若干个测点，当测出各点的炮膛磨损量后，即可从曲线板中查取计算出火炮的初速减退量。 |
| 6. | And we analyzed the effect of the big gun erect axis incline trunnion axis is out of the vertical of the erect axis and the big gun axis is out of the vertical of the erect axis to measuring accuracy
对矢量转轴公式进行了推导，并利用它计算出了火炮竖轴倾斜、炮耳轴与竖轴不垂直、炮膛轴线和炮耳轴不垂直三种误差对测量精度的影响。 |
| 7. | As for one specific gun ammunition system , by use of the established mathematical models the curve of the bore wearing , the muzzle velocity reduction related to that kind of curve and the weight coefficient at each section of that curve can be simulated
对于某一火炮弹药系统，利用建立的数学模型可模拟出炮膛磨损曲线及每一条曲线所对应的初速减退量、曲线上各段的权重系数。 |
| 8. | Having proceeded from analyzing the bore wearing and erosion by application of the new method , the mathematical model of simulating the law of the bore wearing as well as that of the relationship between the law of the bore wearing and the muzzle velocity reduction have been established
新方法从分析炮膛磨损烧蚀入手，建立了模拟炮膛磨损规律的数学模型和炮膛磨损规律与火炮初速减退量关系的数学模型。 |
| 9. | I see that thou art poor : hold , there is forty ducats : let me have a dram of poison , such soon - speeding gear as will disperse itself through all the veins that the life - weary taker may fall dead and that the trunk may be discharged of breath as violently as hasty powder fired doth hurry from the fatal cannon ' s womb
我瞧你很穷，这儿是四十块钱，请你给我一点能够迅速致命的毒药，厌倦于生命的人一服下去便会散入全身的血管，立刻停止呼吸而死去，就像火药从炮膛里放射出去一样快。 |
| 10. | In the paper , the projectile pushing process on firing is analyzed . the quantitative computational model of the projectile velocity to gun bore wear is built . finally , taking the 120mm gun for example , the relation of projectile velocity to gun bore wear is calculated , the phenomenon of trajectory peak is analyzed
分析了射击时弹丸挤进过程，建立了弹丸初速下降量与炮膛内膛磨损量计算模型，并以某火炮为实例计算了该炮弹丸初速下降量与炮膛内膛磨损量之间变化关系，分析了弹道峰现象，为身管寿命预测提供理论依据。 |
