







passing through a hoop
Mechanical sticking can be caused by junk in the hole, wellbore geometry anomalies, cement, keyseats or a buildup of cuttings in the annulus.
Methods Cultured monolayer-confluent human RPE cells were scraped with a trephine and a cotton stick, and set up the injured model of RPE cells with round scraped area.

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Open the tool →钻环 (zuàn huán) means “passing through a hoop”.
钻环 is pronounced zuàn huán in Mandarin Chinese.
“passing through a hoop” is 钻环 (zuàn huán) in Chinese.
This page has 2 example sentences using 钻环, each with pinyin and an English translation.