selective perforation是什么意思

用法例句

Adjustment and choice of polymer in centrifuge dewatering;

离心脱水中絮凝剂的选择

Research and Choice of Licker-in Speed of Carding Machine;

梳棉机刺辊速度的研究及选择

Application of the Fourier Transformation Infrared (FTIR) Spectrometer in the Choice and Appraisement of Infrared Screening Smoke Material;

傅里叶变换红外(FTIR)光谱仪在抗红外发烟材料的选择和评价中的应用

Material selection in packaging and printing designYANG Zubin;

包装印刷设计中印刷材料的选择问题

Selecting Method of Digging Position which is in the Lower Coal Seam of Short Distance Coal Seams;

近距离煤层下层煤巷道开掘位置选择

Particle selecting and providing techniques for laser measurement on the flow field of process equipment;

过程设备冷态流场激光测量示踪粒子选择与添加

To Understand and Choose electric Current Parameter of Low Pressure Breaker Correctly;

正确理解和选择低压断路器的电流参数

Application of analytic hierarchy on supply chain management to choose supplier;

层次分析法在供应链管理中选择供应商的应用

How to Choose ERP for Small and Medium-sized Enterprises;

中小企业如何选择ERP软件

Evaluation of choosing digital resource of library;

图书馆数字资源的评价与选择之我见

Choosing and Cultivation of Regional Leading Industry;

区域主导产业的选择和培育

Selection of Cable in Power Supply System on Coal Mining Face;

对采煤工作面供电系统电缆选择的探讨

Selection of Heat Exchanger of Input Material in Reforming Unit;

重整装置进料换热器的选择

The selection of unprssurized pump used in the chemical industry;

化学工业用无密封泵的选择