正确及时的诊断及选择合适的适应证是保证疗效的关键。
Correct and timely diagnosis and selection of suitable indication ensure to reach satisfactory clinical results.
文章认为只有依据船舶实时倒航工况方能做到主机操作的及时与正确，保证航行安全。
It also thinks that the proper and effective operation of the main engine must fit with the astern condition, ensure safety in sailing.
正确安装五金零件，正确穿上合适的密封胶条，保证胶条与型材胶条槽配合合适，发现损坏应及时更换。
Install the hardware parts and sealing strips correctly, the sealing strips and slots must match perfectly. Remember to replace the damages in time.
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