Science and technology translation involves various industries and professions,with its own system of terminology and unique language features.For a translator,who is not a professional scientist or technician,it seem...Science and technology translation involves various industries and professions,with its own system of terminology and unique language features.For a translator,who is not a professional scientist or technician,it seems to be difficult to do science and technology translation accurately and properly.Consequently,it is necessary for the translator to give play to his subjectivity when translating science and technology documents or related interpretation:searching for related data to replenish necessary professional knowledge,consulting with professional technicians actively to clarify the jargon and common sayings,and thinking critically to scrutiny the source text.展开更多
Light screen velocity measuring method with unique advantages has been widely used in the velocity measurement of various moving bodies.For large air resistance and friction force which the big moving bodies are subje...Light screen velocity measuring method with unique advantages has been widely used in the velocity measurement of various moving bodies.For large air resistance and friction force which the big moving bodies are subjected to during the light screen velocity measuring,the principle of velocity correction was proposed and a velocity correction equation was derived.A light screen velocity measuring method was used to measure the velocity of big moving bodies which have complex velocity attenuation,and the better results were gained in practical tests.The measuring uncertainty after the velocity correction was calculated.展开更多
BASIC PLASMA PHENOMENA Propagation of Intense Femtosecond Laser Pulses in Deuterated Methane and Deuterium Cluster Jets - ZHOU Zili, LIU Jiansheng, LU Haiyang, JU Jingjing, WANG Cheng, XIA Changquan, WANG Wentao, D...BASIC PLASMA PHENOMENA Propagation of Intense Femtosecond Laser Pulses in Deuterated Methane and Deuterium Cluster Jets - ZHOU Zili, LIU Jiansheng, LU Haiyang, JU Jingjing, WANG Cheng, XIA Changquan, WANG Wentao, DENG Aihua, XU Yi, LENG Yuxin; 13（I）： 3-10展开更多
Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and ...Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and the outer of hole caused by loading density variation of the propellant charge makes erosive burning occur at inner holes during in-bore burning.The effect of erosive burning on burning speed of the propellant is studied by using the effects of flow rate,heat transfer and erosion of the combustion gas in inner holes on burning rate.The mathematic model of erosive burning of the propellant is established.The effects of the factors such as loading density,inner hole size and grain length on erosive burning and interior ballistic performance are analyzed.The method to improve the bore pressure for small charge mass and small firing range by erosive burning is proposed.展开更多
文摘Science and technology translation involves various industries and professions,with its own system of terminology and unique language features.For a translator,who is not a professional scientist or technician,it seems to be difficult to do science and technology translation accurately and properly.Consequently,it is necessary for the translator to give play to his subjectivity when translating science and technology documents or related interpretation:searching for related data to replenish necessary professional knowledge,consulting with professional technicians actively to clarify the jargon and common sayings,and thinking critically to scrutiny the source text.
文摘Light screen velocity measuring method with unique advantages has been widely used in the velocity measurement of various moving bodies.For large air resistance and friction force which the big moving bodies are subjected to during the light screen velocity measuring,the principle of velocity correction was proposed and a velocity correction equation was derived.A light screen velocity measuring method was used to measure the velocity of big moving bodies which have complex velocity attenuation,and the better results were gained in practical tests.The measuring uncertainty after the velocity correction was calculated.
文摘BASIC PLASMA PHENOMENA Propagation of Intense Femtosecond Laser Pulses in Deuterated Methane and Deuterium Cluster Jets - ZHOU Zili, LIU Jiansheng, LU Haiyang, JU Jingjing, WANG Cheng, XIA Changquan, WANG Wentao, DENG Aihua, XU Yi, LENG Yuxin; 13（I）： 3-10
文摘Erosive burning is a common burning phenomenon of the gunpowder with inner holes.The actual combustion law of the gunpowder with inner holes can be changed by erosive burning.Pressure difference between the inner and the outer of hole caused by loading density variation of the propellant charge makes erosive burning occur at inner holes during in-bore burning.The effect of erosive burning on burning speed of the propellant is studied by using the effects of flow rate,heat transfer and erosion of the combustion gas in inner holes on burning rate.The mathematic model of erosive burning of the propellant is established.The effects of the factors such as loading density,inner hole size and grain length on erosive burning and interior ballistic performance are analyzed.The method to improve the bore pressure for small charge mass and small firing range by erosive burning is proposed.
