instable[inˈsteibl]

adj.不定的，不稳定的，易变的
‖ instability n.instability constant不稳定常数
instability mode不稳定型
install=instal[inˈstɔ:l]v.安装，装配，定位，设置，任命，使就职
‖ installation n.设备
installation cost安装费
installation diagram安装图
installation diameter装配图
installation grant安置津贴
installation kit零配件
installation security营地安全
installation squadron安装中队
installation time安装时间
installation work安装工作，布线工作
installer n.安装者
installment n.分期付款，安装，装配，（连载的）一节、一章、一册，分期，分批
◇ pay by installments分期付款
installment accounts payable应付的分期款项
installment basis分期偿还法
installment basis method分期付款法
installment book分期付款簿
installment buying分期付款购货
installment contract定期旅行合同
installment credit分期付款信贷
installment debt分期付款债务
installment delivery分期交货
installment house分期付款商店
installment note分期付款票据
installment payment分期付款支付
installment payment of tax分期缴税
installment plan分期付款方式
installment premium分期缴付保险费
installment purchase分期付款购货
installment receivable account分期应收账款
installment sale分期付款销售
installment sales contract分期付款销货合同，分期付款销货契约
installment savings零存整取，零存整取储蓄
installment scrip分期付款收据
installment terms分期付款条件
installment trading分期付款购买
instalment basis accounting分期付款制的会计处理
instalment credit selling分期付款赊销
instalment receivable account应收分期账款
instalment repayment分期还款
instalment trade分期付款交易