The fracture strength of circular diamond film was measured by a burst pressure technique.
利用压力爆破技术测量了圆形金刚石膜的断裂强度。
And c-BN is appropriate to be used in radio resistance and ultra high temperature high pressure technique fields.
BN非常适合应用于抗辐射和超高压高温技术领域。
Methods Negative expiratory pressure technique was performed in 13 special COPD patients who did not accomplish routine pulmonary function tests.
方法采用呼气负压技术检测13例不能完成常规肺功能检查的COPD患者呼气流速受限。
Objective to detect the expiratory flow limitation (EFL) with a new simple technique, expiratory negative pressure technique (NEP) in patients with chronic obstructive pulmonary disease (COPD).
目的：应用呼气负压技术(NEP)检测慢性阻塞性肺疾病(COPD)患者的呼气流速受限(efl)。
Objective to detect the expiratory flow limitation (EFL) with a new simple technique, expiratory negative pressure technique (NEP) in patients with chronic obstructive pulmonary disease (COPD).
目的：应用呼气负压技术(NEP)检测慢性阻塞性肺疾病(COPD)患者的呼气流速受限(efl)。
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