求翻译：3.冷、热水隔墙密封能测试：将淋浴龙头的一个进水口安装在测试设备上，用1．5Nm关闭阀芯，引入规定的压力值，在规定的保压时间内，检查另一出水口应无渗漏。另一出水要重复检查。是什么意思？

Cold and hot water sealing wall can test: a shower faucet inlet installed in the test device with 1.5nm to close the spool, the introduction of the provisions of the pressure value within the specified dwell time, check the other outlet should be no leakage. Another water to repeat the examination.