经过十多年的研制和改进，该灌注泵在技术性能和密封寿命方面均居国内领先水平。
Through over years of research and improvement, the technical performance and sealing life of the filling pump are on top of the nation.
由于灌注泵特定的工作条件，其结构和性能不同于一般用途的离心泵。
Because of the special operating conditions of the charging pump, its structure and performance are different from those of centrifugal pumps in common use.
而另一方面，缅因大学的拱梁可以在现场构建——纤维布套充气、弯曲成简单形状，用真空泵灌注树脂。
The University of Maine arches, on the other hand, can be fabricated on site — the fabric inflated, bent around a simple form and infused with resin using a vacuum pump.
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