It always is an inseparable part of the research and development cycle. 它总是研究和开发周期中的一个不可缺少的部分。
"A-bomb, H-bomb and nuclear-powered submarine" 两弹一艇
A vector-hydrophone array simulator can generate the target radiated noise and the ambient noise.Its application can effectively shorten the developing cycle of a digital sonar. 模拟器可以模拟实际海洋环境中目标的辐射特性和噪声特性,应用模拟器可以有效地缩短声纳的研制周期。