The stress whitening can be clearly seen on the fatigue fracture surface and its region is the initiation and nucleation of fatigue crack which is the main part of total fatigue life.
疲劳断口有应力发白现象；应力发白区为疲劳裂纹形核和萌生区，其寿命占疲劳总寿命的大部分；
Rare plants whitening element from the outside decomposition pigment, can improve skin fatigue and stress due to the Huian, rough phenomenon, the skin has a healthy natural beauty.
稀有的植物美白元素，由内而外的分解色素，可改善皮肤因疲劳和压力而产生的晦暗、粗糙现象，使肌肤呈现了一种健康自然的美。
Rare plants whitening element from the outside decomposition pigment, can improve skin fatigue and stress due to the Huian, rough phenomenon, the skin has a healthy natural beauty.
稀有的植物美白元素，由内而外的分解色素，可改善皮肤因疲劳和压力而产生的晦暗、粗糙现象，使肌肤呈现了一种健康自然的美。
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