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.