This paper presents the construction and the material selection of two kinds of the u.
本章对两种美国高压三柱塞泵的结构和材料选用作了介绍。
In all cases the material selection has a direct influence on the blade manufacturing processes.
不论何种情况,材料的选择都会对叶片的制造工艺流程产生直接影响。
The material selection and airflow measurement of the standard constant flow orifice were described.
同时还对标准恒流孔的材料选择及流量测量进行了论述。
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