奥尔德林当时使用的是毡制粗头笔，它的尖头是不导电的，接触开关不会造成短路或引发火花。
Aldrin relied on a felt-tip marker, since the non-conductive tip would close the contact without shorting it out, or causing a spark.
漏涂仪显示的漏涂区域用粉笔或毡制粗头笔标识。
Holidays indicated by the detector shall be marked with chalk or felt-tip marker to identify the area to be repaired.
有时候，他们还会给自己搭配一顶帽子，帽子的材料多为毡制或者皮质的，造型也分为好几种。
Sometimes they wear a hat which is made by felt or fur with various patterns.
得出了一种固定孔隙的制样方法，用此制样方法可观察到滤毡截面的真实形貌，从而有效地分析滤毡中粗细纤维的配比和各层的孔隙率。
The method of sample preparation by pore fixing was described. The results showed that it was a good method for studying irregular porous structure and the related ratio of felt.
所有瑕疵需要用粉笔或者毡制粗头笔标识以便修补。
All imperfections shall be identified and marked for repair with chalk or felt-tip marker.
所有瑕疵需要用粉笔或者毡制粗头笔标识以便修补。
All imperfections shall be identified and marked for repair with chalk or felt-tip marker.
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