常見(jiàn)例句The chief features of this kind of pump are the wider range of working pressure, the higher pumping speed at the higher pressure and the higher maximum forepressure. 這種泵的主要特點(diǎn)是：工作壓強(qiáng)範(fàn)圍寬、在較高壓強(qiáng)下有較大抽速、最大出口壓強(qiáng)較高。limiting forepressure 極限前級(jí)壓力, 極限前級(jí)壓強(qiáng)forepressure breakdown 前級(jí)壓強(qiáng)破壞forepressure characteristic 前級(jí)壓強(qiáng)特性forepressure gauge 前級(jí)真空槼 返回 forepressure