延长: lengthen; extend; prolong; p ...的: 4次方是 The fourth power of 2 i ...使用期限: lifetime; operating life延长使用期限: expanded service life; increase of service life使用期限长的: hightime强制性的使用期限: mandatory life limitation延长的使用寿命: increased service life正常条件下的使用期限: normal operating time长使用期限: long life使用期限: campaign; durability; duration; expiration date for use; length of life; length of vitality; life span; life time; life-span; lifetime; limit of age; live time; operating life; operating period; operatinglife; operation date; operation life; period of service; period of usage; physical life-time of building; pot life; service age; service life; serviceable life; term of life; terms of service; time limit of service; used life; useful life; work life; working service油使用期限: life span of oil使用期长的: long-lived您的使用期限已过，请重新登入。: your session has expired大厦的使用期: life span of a block剩余的使用期: unexpired life period变量使用期限: lifetime of variable额定使用期限: rated life飞机使用期限: aircraft life飞行使用期限: flying life估计使用期限: endurance expectation经济使用期限: economical service life老化；奉命；使用期限: age年龄；老化；使用期限: age平均使用期限: average life time; average useful life; mean life全部使用期限: entire life
