The types of teachers unhealthy teaching actions mainly include mechanical impression, sarcasm, threat, indifference, partiality, power pressure, body punishment.
在教育教学实践中，教师不良教育行为的类型主要有：刻板印象、挖苦、恐吓、冷漠、偏向、权压、体罚等。
In hot impression die forging, the principal modes of die failure are erosion, thermal fatigue, mechanical fatigue and permanent (plastic) deformation.
在热压模缎中，模具失效的主要模式是腐蚀作用、热疲劳、机械疲劳和永久性即塑性变形。
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