A mooring line that checks forward motion of a vessel at a pier is a（）.
The angular movement of a vessel about a horizontal line drawn from its bow to its stern is （）.
Air motion is induced in a four-stroke/cycle diesel engine cylinder to improve air fuel mixing, and is known as（）
The hand steering is a method by which the motion of the rudder is controlled with （）.
Seasickness is caused by rolling or rocking motions which affect fluids in the（）.
The projection on a shaft designed to change circular motion into up and down or back and fore motion is called （）.
A radar contact will remain stationary on a relative motion radar display only when it is（）.
A liquid sight flow indicator in a refrigeration system is examined and gas bubbles are noted in motion with the fluid flowThis means （）.
Angular motion about the vertical axis of a vessel is called（）.
Among the basic categories of equipment, which of the following is used to convert hydraulic energy into continuous rotary motion?（）
Horizontal fore or aft motion of a vessel is known as（）.
Variation is the angular measurement between（）.
The joint of the riser in a marine riser system that compensates for heave，the up-and-down motion of a floater，is the（）.
Heave is motion along the（）.
If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is （）.
A quick and rapid motion of a ship in a seaway is an indication of a(n) （）.
90. The angular difference between the true meridian (great circle connecting the geographic poles) and the magnetic meridian (direction of the lines of magnetic flux) is called _____.
Heave is motion along the ______.
Angular中的spa是哪三个单词缩写？
The highest frequency of a signal is ,sampling angular frequency is , , in order to avoid aliasing when sampling this signal, what pre-processing is required before sampling （）
Every_____of a motion picture is the responsibility of the director.
Where did the movies begin？ It is often said that they are an American invention. It is not entirely true. The motion picture has been the most international arts. Before the dawn of the twentieth century, inventors in France, England and the United States were among the dozens of men who were trying to develop ways of using photographs to create the effect of motion. Soon after 1889, when the famous inventor Thomas Edison first showed motion pictures through a device called the kinetoscope(活动电影放映机), other devices for the same purpose appeared all over the world. Edison had solved certain problems, making it possible for other inventors move ahead with their own devices. One other important contribution by Edison was the introduction of 35 mm as the international standard film width.
What is the correct alignment of the three views of the first angular projection（）
A body that’s moving with a constant speed travels once around a circular path. Which of the following is/are true concerning the motion？I. The displacement is zero. II. The average speed is zero. III
