A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.
When oil is accidentally discharged into the water，what should you do after reporting the discharge（）.
When distilling sea water the cooling water discharging from the distiller is fed back to evaporator as feed water （）.
When a vacuum boiling evaporator works, the hot jacket water will pass over the tube stack and （） the sea water passing through the tubes.
When a clarifier is running the impurities and water collect at the bowl （）.
When（）clean ballast water from any vessel，an application shall be made to Harbor Authorities for approval.
The officer of the watch should use radar when appropriate and at all times in（）waters.
The motor for the fresh water pump （）.
When a boiler is operating, the water level in the gauge glass reads （） when the boiler is shut down.
（） allows for expansion and water make up in the water cooling system.
When is the density of the water required to be logged in the logbook of a ship?（）
The term flood current refers to that time when the water（）.
When a ship in loaded condition floats at arbitrary water line, its displacement is to the relevant mass of water displaced by the ship（）
After you enter the Ohio River at Cairo，the Map shows that the deepest water under the Illinois Central RR Bridge would be found under which span? （）
A cardinal mark showing an uninterrupted quick-flashing white light indicates the deepest water in the area is on the（）.
When sailing in cold zones, the（） should be drained of water.
What generally occurs when the land is cooler than the nearby water? （）
In his Culture and Anarchy, ( ) showed his deepest contempt for and most frequent attack on the middle-class Philistines who he thought lacked culture.
In his Culture and Anarchy , ( ) showed his deepest contempt for and most frequent attack on the middle-class Philistines who he thought lacked culture.
When the temperature is below zero， water will _______.
原文:Even when we turn off the beside lamp and are fast asleep, electricity is working for us, driving our refrigerators, heating our water, or keeping our rooms air-conditioned.译文:即使我们关掉床头灯睡觉,电仍然在为我们工作,如启动电冰箱,把水加热,或让室内空调持续开着。
5. Types of forces that occur are_______ for every ship when floating or moving through the water.
To make a correct mix for dental stone when using 50g ofpowder，the amount of water wouldbe approximately()
The report says lack of water in the future may result in several problems. It may increase health problems. Lack of water often means drinking waters not safe. Mr. Engelman says there are problems all over the world because of diseases, such as cholera, which are carried in water. Lack of water may also result in more international conflict. Countries may have to compete for water in the future. Some countries now get sixty percent of their fresh water from other countries. This is true of Egypt, the Netherlands, Cambodia, Syria, Sudan, and Iraq. And the report says lack of water would affect the ability of developing to improve their economies. This is because new industries often need a large amount of water when they are beginning.
