With a vacuum boiling evaporator, the remainder of sea water fed to the evaporator is pumped out by ().
A . a brine pump
B . an air ejector
C . a feed pump
D . distillate pum
相似题目
-
(EVAP)是()的简称。
-
EVAP
-
The crankcase of many diesel engines are kept under a slight vacuum by the ().
A . scavenging action of the piston
B . piston type vacuum pump taking suction off a differential manometer
C . gland exhausting manometer
D . crankcase exhaust fa
-
When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and () the sea water passing through the tubes.
A . dispose
B . dissolve
C . heat
D . dissipate
-
EVAP是()英文缩写。
-
The vacuum maintained in the salt water feed heater shell of a flash-type evaporator is generally accomplished by ().
A . a separate air ejector unit
B . a direct unimpeded connection between second stage and salt water feed heater
C . either by vacuum drag or an external line from the first stage via a fixed orifice
D . the fixed orifice provided in the steam supply line
-
EVAP阀(碳罐控制电磁阀)工作条件是什么()?
A . 发动机水温正常
B . 车速小于30km/h
C . 中小负荷
D . 节气门处于关闭位置
-
A vacuum is initially established in the first and second stages of a low pressure evaporator by the use of ()
A . vacuum drag from the auxiliary condensate system
B . individual vacuum pumps
C . a single non-condensing air ejector
D . a two stage air ejector
-
In a vacuum distillation system, the case is the higher the pressure, ().
A . the saturation temperature is higher
B . the higher the saturation temperature
C . the higher is the saturation temperature
D . the saturation temperature is more high
-
What is TRUE of pressure/vacuum valves? ()
A . They are designed to provide for the flow of small volumes of tank atmospheres caused by thermal variations in a cargo tank
B . They should operate in advance of the pressure/vacuum breakers
C . They should be kept in good working order by regular inspection and cleaning
D . All of the above
-
EVAP的含义是()。
A . 喷油器
B . 油泵
C . 燃油蒸汽排放装置
D . 线束
-
In a vacuum boiling evaporator, the fresh water generated is pumped out by ().
A . a brine pump
B . an air ejector
C . a feed water pump
D . a condensate pum
-
汽油蒸气排放(EVAP)控制系统的作用是什么?
-
英译中:Vacuum packaging
-
试述燃油蒸气排放控制系统(EVAP)的一般维护内容?
-
Because of the reduced () in the vacuum boiling evaporator, some of the sea water boils as it flows through the tubes.
A . temperature
B . water level
C . pressure
D . rate of flow
-
试说明EVAP系统真空控制阀的检查方法?
-
试说明EVAP电磁阀的检查方法?
-
极限真空(limiting vAcuum)
-
EVAP装置有何功用?
-
Water boils __________ if there is a cover on the pan.
-
At the beginning of the 20th century, people made coffee______a cloth bag full of coffee grounds into boiling water.
A.by dumping
B.to dump
C.for dumping
D.that dumped
-
Boil 0.5 g of thepowdered tablets for 2 to 3 minutes with 10 mL of 5 M sodium hydroxide, cooland add an excess of 1 M sulfuric acid; a crystalline precipitate is produced.To a solution of the precipitate in water add iron (III) chloride solution R1;a _______ colour is produced.
A、turquoiseblue
B、deep violet
C、sandy brown
D、smoky grey
-
A single status may have multiple roles attached to it, constituting a role set. Consider the status of a patient in a hospital. The status involves the sick role; another role as the peer of other patients; still another role as the "appreciative" receiver of the gifts and attention of friends and family members; one role as a consumer of newspapers, magazines and other small items purchased from a hospital attendant; and a role as acquaintance of a number of friendly hospital personnel. Or consider your status as a family member. Your status includes a variety of roles, for example, parent and child, uncle, spouse, and cousin. Clearly, a role does not exist in a social vacuum; it is a bundle of activities that are connected with the activities of other people. For this reason there can be no professors without students, no husbands without wives, no whites without nonwhites, and no lawyers without clients.
Roles affect us as sets of norms that define our duties the actions others can legitimately insist that we perform, and our fight the actions we can legitimately insist that others perform. Every role has at least one reciprocal role attached to it; the fights of one role are the duties of the other role. As we have noted, we have a social niche for the sick. Sick people have fights our society says they do not have to function in usual ways until they get well. But sick people also have the duty to get well and "not enjoy themselves too much." The sick role also entails an appeal to another party the physician. The physician must perceive the patient as trying to get well this is the physician’s right and the patient’s duty. And the patient must see the doctor as sincere the patient’s fight and the physician’s duty. It should come as no surprise that the quality of medical care falters when patient and physician role expectations break down.
One way that people are linked in groups is through networks of reciprocal roles. Role relationships tie us to one another because the rights of one end of the relationship are the duties of the other. People experience these stable relationships as social structure a hospital, a college, a family, a gang, an army, and so on.
If your are a patient, you take on all the following roles EXCEPT the role as______.
A.a friend of your fellow patients
B.a staff member of the hospital
C.the receiver of the treatment
D.a buyer of medicines