More severe cases may be treated with a CPAP machine, so named because they maintain constant positive air pressure to the wind pipe to help users breathe easy at night.
严重一点的患者可能就得用CPAP机来治疗了，人们给它取这个名字是因为它能够给气管提供稳定的空气压力，借以帮助患者在夜间呼吸。
USES frequency conversion control system, can real time monitoring gas supply lines gas pressure, make the gas supply pipe gas pressure constant, improve the production efficiency and product quality.
采用变频控制系统后，可以实时监测供气管路中气体的压力，使供气管路中的气体的压力保持恒定，提高生产效率和产品质量；
In the case of constant pipe diameter, lengthening the length of vacuum tube is an effective way to increase the total heat of solar water heater!
在管径恒定的情况下，加长真空管的长度是增加太阳能热水器总得热量的有效途径和方向！
The experiment is assumed that the elastic modulus of the steel pipe equal and constant, the insulation layer friction proportional to the difference of elongation.
若实验过程中假设钢管的弹性模量和钢材的弹性模量相等且为常数，则保温层摩擦力和无保温管与有保温管伸长量之差成正比；
This paper discusses the relation between degree of vacuum and air flow in drop pipe when black liquor flow is constant.
本文叙述了当液体流量恒定时，水腿中（大气压管）吸入空气量与真空度的关系。
The tensioner is the key device of offshore pipe-laying vessel and the tension system of the tensioner ensures the constant tension.
铺管船用张紧器是海洋铺管船的关键设备，张紧器张紧系统是张紧器保持管线恒张力的保证。
Factors affecting constant pressure difference control method and advantages and disadvantages of the control plan are analyzed theoretically through pipe system head curve and pump performance curve.
根据管道水力特性曲线与水泵的性能曲线，运用理论分析的方法，对影响末端定压差控制方式的因素和该控制方案的利弊进行了分析。
The calculation of constant pressure values for relief valves in the fire suppression systems of high-rise buildings usually is based on the working pressure of pipe systems by experience.
高层建筑消防给水系统安全阀的定压值通常根据系统工作压力按经验法计算，但这种方法仅适用于安全阀设置在消防水泵出口压水管上的情形。
The connection part of the preheating pan of constant temperature oil and the oil conveying pipe is near the bottom of the preheating pan of constant temperature oil;
恒温油预热锅与输油管的连接部分在靠近恒温油预热锅底部；
Small corner in the pipe line or permitted under conditions of constant use of natural elbow.
在管道线路转角较小或条件容许的情况下常采用自然弯管法。
The constant speed rotating unit includes an inner rotating rod and an outer stationary pipe.
转动内杆具有穿出第二固定座外的传动段及穿出第一固定座外的套置段；
The oil tank body forms into constant volume, and is provided with a digital graduated level gauge, and an oil outlet pipe is connected to a main fuel tank of an automobile.
本油箱的箱体采用固定容积，在箱体上带有数字刻度的液面指示计，其出油管连接到汽车主油箱上。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
As there is certain response time for hydraulic valve startup, constant pump has to bear the momentary extremely high pressure impact with a high risk of oil pipe explosion.
液压阀开启有响应时间，定量泵系统启动时，瞬间压力冲击特别大，油管容易爆裂。变量泵启动时只有3mpa左右的待命压力，消除了爆管的隐患。
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