Compared to a low pressure system,generally the air in a high is().
A、warmer,less dense,and less stable
B、cool,more dense,and drier
C、muggy and cloudy
D、extremely moist with high relative humidity
A、warmer,less dense,and less stable
B、cool,more dense,and drier
C、muggy and cloudy
D、extremely moist with high relative humidity
A、the extra weight required for the diesel reduction gearing B、a minimum speed for the engines that limits the minimum speed of the vessel C、the higher fuel consumption per SHP D、the low efficiency of the system when a controllable pitch propeller is used
A、the information can be received on an ordinary FM radio B、warnings are printed out for reading when convenient C、broadcasts are at scheduled times D、a low frequency band is used for long distance transmission
A、be more suitable for river and harbor navigation B、provide better range performance on low lying targets during good weather and calm seas C、have a wider horizontal beam width D、have more sea return during rough sea conditions
A、tide is falling from high water to low water B、tide is rising from low water to high water C、tide is reaching to a highest level D、tide is reaching to a lowest level
A、tide is falling from high water to low water B、tide is rising from low water to high water C、tide is reaching to a highest level D、tide is reaching to a lowest level
A、The 7042-CR4 is a rack mounted model, compared to the 7042-C06, which is adesktop. B、The 7042-CR4 is limited to 16 managed systems, compared to a limit of 32 for the 7042-C06. C、The 7042-C06 has faster CPUs and twice the RAM compared to the 7042-CR4,which is suited to large enterprise deployments. D、The 7042-C06 can manage POWER5-based hardware, in addition to POWER6, while the 7042-CR4 can only manage POWER6-based hardware.
A、compression must be low for effective spark ignition B、compression must be low for required horsepower and torque generation C、compression must be low to prevent pre-ignition D、compression must be low to have effective pre-ignition