balance law平衡律
balancen.平衡;天平;平静;结余;差额;调和;制衡vt.权衡;使平衡;抵消;称重量vi.均衡;建立平衡
balance ranked set sample平衡秩集样本
balanced polyphase system平衡多相系
balanced type carburettor平衡式汽化器
balanced amino acids diet氨基酸平衡日粮
balanced fuel composition平衡燃料成分
balanced threewire system平衡三线制
balanced incomplete block平衡不完全区组