circulating time meaning in English

冲孔时间

Recycling circulating times of sand in the machine can be regulated to gain the recycling sand in line with different demands and states of the used sand
根据工艺不同要求和旧砂不同情况，可调整砂子在该机中的再生循环次数，达到满足工艺要求的再生砂。
Mpeg - 1 the conduct and actions see the allotment to lie the quality to use on saw the cd with the cd - i . the mpeg - 2 provide the better than laser video - disc quantity with dvd , and each light dish circulate time to laser video - disc of two times
Mpeg - 1作为视频分配介质用在视频cd和cd - i上。 mpeg - 2和dvd提供比激光影碟更好的质量，并且每张光盘运行时间为激光影碟的两倍