词汇	letter of ratification
释义	letter of ratification 批准书
随便看	self-balanced method ofpile testing self-balanced pile test method self-balanced robot self-balanced test self-balanced testing technique self-balanced test method self-balanced valve self-balance flat slide valve self-balance grouting self-balance loading method Self-balance Method self-balance pre-stress self balance protection self-balance protection self-balance structure self balance system self-balance technology selfbalancing self balancing self-balancing Self-balancing self-balancing amplifier self-balancing approach self balancing bolometer bridge self-balancing bolometer bridge