所提供的开关叶片采用铍铜合金制造，铍铜合金在弯曲记忆区域、抗张强度和耐腐蚀等指标均优于不锈钢。
The supplied paddle is made of beryllium copper and superior to stainless steel in the area of flex memory, tensile strength and corrosion resistance.
心理紧张强度与劳动者脑力能力主、客观指标均呈显著负相关关系（P<0.01）。
MFI and autocritical brain ability were significantly and negatively correlated with PSI (P<0.01).
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