粘弹性
船上的应急电瓶应每（）检查，充放电一次并记入轮机日志。 ["周","月","季","限时"]
按工作原理不同，汽轮机可以分为（）两种 ["正压式和负压式","冲动式和反动式","背压式和凝汽式","轴流式和幅流式"]
宪法是国家的根本法，具有最高法律效力。有关宪法法律效力的表述的是（）。
The performance of the contracted product should be （） the technical specifications stipulated in the contract. ["in compliance to","in conformity with","in accordance to","with respect to"]
绝压
