参考文献:10.1007/bf00588678 摘要:Dörrscheidt-Käfer M. The action of Ca2+ , Mg2+ and H+ on the contraction threshold of frog skeletal muscle: Evidence for surface charges controlling electro-mechanical coupling. Pflugers Arch. 1976 Mar 11;362(1):33–41. doi: 10.1007/bf00588678.