perforator是什么意思

实用例句

1. Perforation effect is seriously affected by the clearance between perforator and casing.

射孔枪与套管之间的间隙过大会影响射孔效果,太小容易出现工程事故.来自互联网

2. Objective To study the influence of the pedicle perforator flaps in hemodynamics.

目的研究主干蒂与穿支蒂穿支皮瓣血流动力学的差异.来自互联网

3. Wood - base panels . Determination of formaldehyde content. Extraction method called the perforator method.

木质 人造板. 甲醛含量的测定. 称为“穿孔法“的提取法.来自互联网

4. Perforator: Key board which produces prunched paper tape.

打孔机: 把纸带打孔的键盘.来自互联网

5. This paper describes a non - excavating construction machine - hydraulic perforator.

本文介绍了一种新型 非 开挖施工机械 ——— 液动穿孔机.来自互联网