细度

400 grit paper.

细为400的砂纸。

Methods of testing China uplands cotton fibre fineness and maturity coefficient rapidly by constant pressure airometer is discussed.

对采用定压式气流仪快速测定我国陆地棉纤细和成熟的方法进行了探讨。

It is composed of the XD-I vibroscope based on the string vibration and the XQ-I fibre tensile tester with pneumatic clamp operating and data processing function.

该仪器由按弦振动原理设计的XD-1型振动式细仪及有气动夹持操作及据处理功能的XQ-1型纤强伸仪组成。

Staple fiber may be varied in length, denier and other respects to render it spinnable on the several established systems for the natural fibers cotton, wool and flax.

聚酯短信纤另工制造成不同的长、细或其它性能，使其能够在天然纤棉、毛及麻的几个加工统中有纺性。