Scrapers are used to ()the rust on the plates.A、removeB、moveC、shiftD、water

Scrapers are used to ()the rust on the plates.

  • A、remove
  • B、move
  • C、shift
  • D、water

相关考题:

_____ is used as coolant in light-water reactors. A、GasB、Organic compoundC、Molten saltD、Water

Icebergs are parts of glaciers that break off, () into water, float about awhile, and finally melt. A、mobileB、driftC、shiftD、rotate

I'm going to do all I can to ______ the unpleasant impressions you have of me. A. removeB. moveC. getD. leave

As mentioned,‘grey water’ can be used to_,A.wash the carB.water the gardenC.clean the toiletD.dispose of wastes

29. The writer thinks that people in large cities should __________ .A. stop the used water from getting into undergroundB. only use the water from the riversC. make their used water clean againD. use as much sea water as possible

What is head tank in the closed cooling water system used for?A.for the release of air from the cooling waterB.providing expansion room for heated cooling waterC.a place for implementing water and water treatment agentD.all of the above

Food and water more expensive than ________ used to be. A.isB.themC.itsD.they

As mentioned,“grey water”can be used to______.A.wash the carB.water the gardenC.clean the toiletD.dispose of wastes

The ______is used to burn oil sludge.A.clarifierB.oily water separatorC.incineratorD.distiller

A check line is ______.A.A safety line attached to a man working over the sideB.Used to measure water depthC.Used to slow the headway of a bargeD.Used to measure the overhead height of a bridge

The following tells us how to reuse the used water.Which is the right order of the passage A.to have the used water filteredB.to put chemicals in itC.to pipe it to the usersD.to pipe the used water to be purified to a factory

The water we drink and use is running short in the world.We all have to learn how to stop wasting our limited water.One of the steps we should take is to find ways of reusing it.Experiments have already been done in this field.Today in most large cities,fresh water is used only once,then it runs into waste system.But it is possible to pipe the used water to a purifying factory.There it can be filtered and treated with chemicals so that it can be used again,just as it were fresh from a spring.But even if every large city purified and reused its water,we still would not have enough.Then we could turn to the oceans.All we’d have to do to make use of the seawater on earth is to get rid of the salt.This process is called desalinization,and it is already in use in many parts of the world.The way to stop wasting our limited water is to________.A.do experiments with waterB.purify the used water and reuse itC.use fresh water once againD.make use of seawater

There wouldn’t be enough water for us if we didn’t_________.A.turn to the oceans for more waterB.reuse used water and make use of seawaterC.desalt seawaterD.take steps to reuse all water on earth

Water is used to put out ()(普通火).A、common fireB、electric fireC、oil fireD、fire

How do you ()the heavy rust on the plates?A、removeB、renewC、reopenD、remote

单选题On a bulk chemical carrier,water should NOT be used as an extinguishing agent to fight a fire if the water may come into contact with the chemical called().Aacrylic acidBbenzeneColeumDvinyl toluene

单选题What is head tank in the closed cooling water system used for?()Afor the release of air from the cooling waterBproviding expansion room for heated cooling waterCa place for implementing water and water treatment agentDall of the above

单选题水泥涂料用于淡水舱和双层底舱。()APrimer is used for sea water tanks and double bottom tanks.BCement wash is used for fresh water tanks and double bottom tanks.CVarnish is used for fresh water tanks and double bottom tanks.DBitumen is used for fresh water tanks and double bottom tanks.

单选题Scrapers are used to ()the rust on the plates.AremoveBmoveCshiftDwater

单选题()is used to absorb the water.APaperBGlassCSpongeDStow

单选题Ships are always()on water and they are easy to rust.AfloatBfloatingCfloatsDfloated

单选题Oil water separators are used to ensure that ships dont discharge oil when pumping out ().Aballast waterBboiler waterCbilge waterDsewage water

单选题The difference in water spray pattern between the high-velocity tip and low-velocity applicator used with the all-purpose nozzle is due to().Aa difference in water pressureBthe method of breaking up the water streamCthe length of the applicatorDAll of the above

单选题Which of the materials listed is used as the dynamic seal material on mechanical seals installed on most centrifugal pumps used in water service?()ACopperBCopper and carbonCCarbonDBronze

单选题() is used for cylinder and cylinder head, the salt water is used for cooling the lubricating oil, the fresh water in the coolers and the charging air in the air cooler.AThe fuel oilBThe lube oilCThe sea waterDThe fresh water

单选题Oil water separators are used to ensure that ships don’t discharge oil when () bilge water.Ato pump offBbeing pumpedCpumping outDit pumping out

单选题The pot _____ for _____ hot water.Aused; keepingBwas used; keepingCis used; to keepDare used; keep