Objective To investigate daytime and nighttime variation of heart rate variability(HRV)in patients with obstructive sleep apnea syndrome(OSAS), and to evaluate the screening capacity of HRV.
目的研究阻塞性睡眠呼吸暂停综合征（OSAS）患者心率变异性（HRV）昼夜变化，探讨利用HRV指标筛选OSAS的效果。
Other uses of microarrays include the screening of large numbers of molecules for their capacity to bind a particular target protein.
其它微点阵的用途包括从大量分子中筛选出能结合特定靶蛋白的分子。
Frequency screen is a new high efficiency machine and has the advantages of electromagnetic vibration, high frequency, high capacity and high screening efficiency.
复频筛是一种新型高效的筛分设备，具有电磁振动、高频率、设备处理能力大、筛分效率高等优点。
Through improvement, there are a great increase in the production capacity, screening efficiency and system operating rate.
改造后生产能力、筛分效率、系统运转率均有较大提高。
The soil capacity system has transfering and screening effects, which display the different matching degree of supplied information and required information.
土壤容库系统起中转筛检作用，反映地下馈供信息流与植被需求信息流的匹配程度不同；
It has high accuracy in screening and big processing capacity.
筛分精度高，物料处理量大。
Combining the characteristics of circular motion, elliptical motion, and the reciprocating linear motion. Large capacity, small energy consumption and the screening efficiency is high.
综合了圆运动、椭圆运动、和往复直线运动的特点，产量大，能耗小，筛分效率高。
Combining the characteristics of circular motion, elliptical motion, and the reciprocating linear motion. Large capacity, small energy consumption and the screening efficiency is high.
综合了圆运动、椭圆运动、和往复直线运动的特点，产量大，能耗小，筛分效率高。
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