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维细度和成熟度系数的方法进行了探讨。

Therefore we point out a new method of testing fragile material's strength of extension.That is to say we can measure the disk's strength of extension by pressing in its diametric.

从而对脆性材料抗拉强度的测定提出了一种新的方法,即通过对圆盘沿直径对心受压试验可测出其抗拉强度。