多级火箭
- 与 多级火箭 相关的网络例句 [注：此内容来源于网络，仅供参考]
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With the help of rockets, we send the airship into the space.
我们主要是通过火箭的助推来将飞船送入太空的，前人已经用他们的智慧告诉我们：一定要用多级火箭才能达到这一目的，那么这到底是为什么呢？
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These are two ways to make step rockets, one is to put the stages one on top lr the other.
有两种制造多级火箭的方法，一种是把一级放在另一级的项上。
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One of two or more successive propulsion units of a rocket vehicle that fires after the preceding one has been jettisoned.
一节火箭：两级或多级火箭的推动器，往往前一个推动器被抛弃后下一个才点火发射
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Step'.'' rocket goes up, some of the stages at the ''.
当多级火箭上升时，边上的几''。
- 推荐网络例句
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The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.
采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。
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By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.
通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。
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Have a good policy environment, real estate, secondary and tertiary markets can develop more rapidly and improved.
有一个良好的政策环境，房地产，二级和三级市场的发展更加迅速改善。