【判断题】when talking about temperatures, chinese people always use centigrade (celsius), while american people commonly use fahrenheit. (t/f)
10、旅游资源的不可流动性、资源环境的容量约束、季节性等是研究旅游应该注意的特殊问题。
合格的电容器不容许有一定的泄漏电流。()
如果建立起了一个模糊推理系统,可以用( )命令把此系统读入到matlab环境下,形成一个a对象。
the solas convention on emergency power provides that emergency generators shall carry rated loads safely and practically within a maximum of .
the ship's main switchboard is made up of .
the meaning of "cold ship" in this course is .1) the ship's ambient temperature is lower; 2) engine room temperature is lower; 3) engine room valves are in default state; 4) there is no electricity in the engine room; 5) ship has no power; 6) the temperature of equipment and system is the same as the ambient temperature.
daily management of fixed fine water mist fire extinguishing system: monitor the level of water supply tank of high-pressure water mist pump, keep it at the water level at all times, and set its working mode to position.
the necessary conditions for the stable operation of the main diesel generator include the preparation and commissioning of .
ccs specifications for the propulsion system: the number of consecutive automatic starting of the main engine should not exceed times, and after the failure of starting, the automatic restart should be stopped, and visual and auditory alarm signals should be issued.
the following do not belong to the role of the diesel expansion tank is .
the meaning of "cold ship" in this course is . 1) the ship's ambient temperature is lower; 2) engine room temperature is lower; 3) engine room valves are in default state; 4) there is no electricity in the engine room;5) ship has no power; 6) the temperature of equipment and system is the same as the ambient temperature
the main piping systems of ship auxiliary boilers are not included .
in the diesel engine forced liquid cooling system, the most ideal cooling medium is .
in the diesel engine forced liquid cooling system, the most ideal cooling medium is .
范德华力和氢键是高分子分子间的作用力是不大的,因此对高分子制品的强度和耐热性影响也不大。
the cylinder liner corrosion of closed-type diesel engines is mainly caused by .