单词：development cycle
development cycle的用法和样例：
例句
- 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。
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