madreporic canal是什么意思

用法例句

The synthesis of diamond tubes by HFCVD;

热丝CVD法制备金刚石管

The paper introduces the advantages and application sphere of the concrete packing in cable pipes of cement slurry with fiber in the sepiolite,studies the installation process of the sepiolite pipes and the craft principle of the concrete packing,detail introduces the craft procedure and operation points,so as to further expand the application of the technology to the underground cable projects.

介绍了海泡石纤维水泥电力电缆管的优点及适用范围,在此基础上研究了海泡石管安装过程及混凝土包的工艺原理,并对其工艺流程及操作要点进行了详细论述,从而进一步推广该工艺在地下电缆工程中的应用。