Hydrazine decomposition thruster with canted nozzle is being more and more utilized in space propulsion system.

折角喷管肼分解发动机在空间推进系统正得到越来越多的应用。

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In order to make four dimensional squares, we have to use all the methods comprehensively, such as composition, decomposition and change, finally, we can make the space more perfect.

为了创造四维的广场，要综合运用分解、组合与变化等等空间构成手法，使空间形式更加完美。

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In this paper, we have discussed root subspace decomposition of linear space, and for the linear space have decomposed direct sum of root subspace, a primary proof is given.

文章讨论了线性空间的根子空间分解，并对线性空间分解成根子空间的直和给出了较为初等的证明。

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