It is a beneficial quest in order to apply in engineering about needle-shape nozzle.
这部分实验为工程上针型喷嘴雾化的应用作了有益的探索。
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There are many kinds of nozzles, among which the needle-shape nozzle is widely used in practice.
喷嘴的型式很多，目前使用最广泛的是针型喷嘴。
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