The hot cooling gases flow away the cooling region and then are cooled, compressed and recycled.
热的冷却气离开冷却区域后,经过冷却、压缩,再循环使用。
Rising human population density, combined perhaps with a cooling, drying climate, left the Natufian hunter-gatherers of the region short of acorns, gazelles and wild grass seeds.
人口密度的上升,结合其他如气候变冷变旱的因素,使采猎为生的纳图夫人(Natufian—约公元前1万年的史前人)短缺橡果、羚羊和野草种。
At high temperatures, the material is entirely austenite, but upon cooling enters a region where the stable phases are ferrite and austenite.
在较高温度时,这种材料全部是奥氏体,但随着冷却就进入到铁素体和奥氏体稳定状态的区域。
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