For crack-opening displacement tests, a specimen is notched and then fatigued by flexing to obtain a fine crack. Force is then applied until the crack begins to grow.

在裂纹扩展试验中，试样切口后使其弯曲并产生微小裂纹，在试件上继续加力直到裂纹扩大为止。

youdao

Despite the crack-up, Mia's mind is in fine form: she's learned and thoughtful; her head is stuffed with Freud, Hegel, Rilke and Blake.

虽然经历剧变，米娅的头脑依然聪慧：她博文广知，思维缜密，脑子里充满了弗洛伊德、黑格尔、里尔克以及威廉•布莱克的思想。

youdao

Amelie: [to her father, who is not paying attention] I had two heart attacks, an abortion, did crack... while I was pregnant. Other than that, I'm fine.

艾米莉经典语录：(对着她父亲，他并没有在意)我有两次心脏病，一次流产，真的破裂…当我怀孕的时候。除了那个，我很好。

youdao

In Texas, regulars come by the store that sells TSA items and check with employees on shipment schedules to get first crack at top-brand sunglasses and fine watches.

WSJ: Shopping for a Rolling Pin, Scissors or a Bat? This Auction Is for You

Hydraulic fracturing, or fracking, pumps millions of gallons of water mixed with fine sand and chemicals deep into oil and gas wells to crack gas-bearing rock.

WSJ: NY groups claim industry bias in fracking study