libration摆动: swing; sway; oscillate; pend ...平衡: balance; equilibrium天平: balance; auncel; scales动: harness cause disorder stir ...摆动, 天平动: libration下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:摆动；平衡；天平动，即可在微信中查询翻译
