表面密封 meaning in English

face seal

Fitting - o - ring face seal
O型圈表面密封配件
Soil quality - measurement of the stability of soil aggregates for assessment of liability to surface sealing and hydric erosion
土质.表面密封和水腐蚀倾向性评定用土壤集料稳定性的测量
Some discharge is expected , particularly on start - up , until all seating surfaces seal . continuous discharge is an indication that the internal seating parts and surfaces may require the cleaning
可能会产生一些排放，特别是在启动时，这种排放会延续到所有阀座表面密封后为止。持续排放则表示内部阀座部件和表面可能需要清洗。