The gooseneck condenser microphones feature a cardioid polar pattern, and are available in four different models, dependent on height and mounting application.

This paper introduced automatic cardioid vector diagram system using single chip microcomputer. It makes full use of the characteristics of 8031. The hardware and software of this system were described in detail.

充分利用了8031的特点研制一种利用单片机控制的自动心向量图机，并对系统的组成作了详细论述。

Automatic cardioid vector diagram system

自动心向量图机系统

This cardioid condenser microphone defines classic style and elegance in its seemingly indestructible protective screening.

这指向电容话筒，定义在其看似坚不可摧的防护筛选经典的风格和优雅。

Cardiogenic chest pain was in 2 patients ( 4. 5%) and 14 patients with undetermined chest pain ( 31. 9%).

2例心源性胸痛（45%）；未能明确原因14例（319%）。

Analysis of X-ray Signs in 31 Patients with Cardiogenic Pulmonary Edema

心原性肺水肿31例的X线征象分析

Clinical value of mechanical ventilation in treatment of acute cardiogenic pulmonary edema

机械通气在抢救急性肺水肿时的临床疗效

Bilevel Positive Airway Pressure Ventilation in Acute Cardiogenic Pulmonary Edema

经面罩双水平气道正压通气治疗急性心源性肺水肿的疗效

The Study of Poor Prognostic Factors in Acute Cardiogenic Pulmonary Edema

急性心源性肺水肿不良预后因素的研究

Results: 256 patients ( 131 male) with cardiogenic syncope ( aged 53.5 ± 21.1 years) were followed up for 17.7 ± 12.0 months.

结果：随访心源性晕厥患者256例（男131例），年龄（53.5±21.1）岁，平均随访（17.7±12.0）个月；

Aim: To explore the diagnostic role of atrial pacing through esophagus ( TEAP) on cardiogenic syncope.

目的：探讨食管心房调搏（TEAP）对心源性晕厥病因的诊断价值。

Prognosis and Etiological Treatment of Cardiogenic Syncope in Children

心源性晕厥患儿病因治疗与预后

Analysis of atrial pacing through esophagus on causes of cardiogenic syncope

食管心房调搏对心源性晕厥病因的诊断价值

Objective To explore the prognosis and etiological treatment of cardiogenic syncope in children.

目的探讨儿童心源性晕厥病因治疗与预后的关系。

Cases Analyze on Cardiogenic Syncope

病例分析&心源性晕厥

Methods Recall and analysis Clinical data of26 cases of cardiogenic syncope.

方法回顾分析26例心源性晕厥的临床资料。

The simple obesity forms harmfulness to cardio-pulmonary function of children. Attention: the risk of high blood pressure will increase in the future. 3.

单纯性肥胖对儿童心肺功能已构成危害，提示日后患高血压和肺心疾病的危险性增加。

The study on the anaerobic threshold ( AT) determination of the exercise cardio-pulmonary function by the inference and multi-evaluation method

应用推理-综合评判方法确定运动肺功能无氧阈的研究

Methods The cardio-pulmonary function and the change of lactic acid in blood were detected with sport maximum intension test.

方法采用极量运动试验，测定运动不同时期心肺功能指标及血乳酸含量变化，了解两组间运动耐力和强度差异。

Effects of Inverse Ratio Ventilation on Cardio-pulmonary Function in Oleic Acid-Induced Lung Injury

反比通气对油酸性急性肺损伤心肺功能影响

Clinical study of cardio-pulmonary function on severe pneumonia of children in the far time

小儿重症肺炎远期心肺功能的临床研究