Pressure gradient is a measure of（）.
If a refrigeration compressor is short cycling on high head pressure, you should （）.
If a large difference exists between the compressor discharge pressure and the pressure corresponding to the existing condensing temperature in a refrigeration system, you should（）.
Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this，you should（）.
Damaged bulkheads often take a permanent set which is independent of the panting or bulge caused by water pressure. To control this, you should（）.
The vapor pressure of a gas is the pressure necessary to keep it in a(n)（）.
When observing a rapid rise in barometric pressure，you may expect（）.
To determine the pressure and temperature limitations under which LFG is required to be transported on a barge，you should look at the（）.
If the center of low pressure is due west of you in the Northern Hemisphere，which wind direction should you expect（）.
As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: （） (1) secure oil to fires (2) increase feed pump pressure
Blood is a fluid consisting of plasma which accounts for less than 1%.
high blood pressure 译成:
such as_______ and high blood pressure.
After a _____________physical exam, my doctor said I was in good condition except that my blood pressure was a little high.
Health risks reduced by intensive control of blood glucose and blood pressure: （） stroke and
As for an oil-fired boiler if at a normal steaming condition and water goes out of sight in gauge glasses the action you should take is: (1) secure oil to fires; (2) increase feed pump pressure.
The mean of blood pressure in a series of boys is 120 kPa, and the standard deviation of the same data is 10 kPa, the coefficient of variation of this data equals
听力原文：Donating blood plasma has always been a noble pursuit to help those in need. Since last September, there has been an upsurge in blood donations, as the need has become more emphasized and more empathized. But if you've had a tattoo or piercing within the last year, you will more than likely be turned away from any blood bank.
请就听到的问题作答_______ A) Cooked meat products are safe to eat. B) People should eat less popular prepared foods. C) To decrease salt, popular prepared foods need to be improved. D) High blood pressure patients should see a doctor.
You have been badly injured in a car accident. It is necessary to give you a blood transfusion because you lost a great deal of blood in the accident. However, special care must be taken in selecting new blood for you. If the blood is too different from your own, the transfusion could kill you. There are four basic types of blood: A, B, AB, and O. A simple test can indicate a person's blood type, which, like hair color and height, is inherited from parents. Because of substances contained in each type, the four groups must be transfused carefully. Basically, A and B cannot be mixed. A and B cannot receive AB, but AB may receive A or B. O can give to any other group; hence, it is often called the universal donor. For the opposite reason, AB is sometimes called the universal recipient. However, because so many reactions can occur in transfusions, patients usually receive only salt or plasma (liquid) until their
Your BAC （Blood Alcohol Concentration） is 60mg. According to the traffic regulations, you are_______ driving（）
老年人主动脉弹性减退，不伴有小动脉硬化时，arterial blood pressure的变化是：
A 35-year-old man has had chest pain and dyspnea on exertion for 3 years. The blood pressure is 150/30mmHg and his heart enlarges like a boot. Which of the following signs is most likely to be found o
5、本实验是把气压的压力变化通过扩散硅压力传感器转化为电压的变化，微弱的电压信号经差动放大器放大后，用毫伏表观察电压的变化，并进行数据分析处理和人体血压的测量。 In this experiment, the pressure change of air pressure is transformed into the change of voltage through the diffusion silicon pressure sensor. After the weak voltage signal is amplified by the differential amplifier, the change of voltage is observed with a millivoltmeter, which will be used for data processing and blood pressure measurement.
