硬填料 meaning in Chinese

hardcore

The basic structure and the seal principles of the hard packing were presented , and the formula of specific pressure was given
介绍了硬填料密封的基本结构及密封原理，给出了比压计算式。
In an investigation , the hard packing was used to isolate the seal oil from the process fluid for recovering the seal oil from the catalytic hot oil pump
在回收催化热油泵密封油的试验中，用硬填料作为密封油和介质的隔离装置。