阻尼比ζ（damping ratio）
阻尼比ζ（damping ratio）
相关考题：
消能减震结构的总阻尼比应为()。 A、结构主体阻尼比B、消能器附加给主体结构的阻尼比C、结构主体阻尼比与消能器附加给主体结构的阻尼比的50%之和D、结构主体阻尼比与消能器附加给主体结构的阻尼比的总和
Current ratio and quick ratio are two of the most common ratios used to analyze a firm’s short－term or liquidity position.() 此题为判断题(对，错)。
If a firm has a quick ratio of 1, the subsequent payment of an account payable will cause the ratio to increase.() 此题为判断题(对，错)。
Which of these terms refers to call issues that cause variations in timing or time of arrival？（）A、queuingB、jitterC、packet lossD、digitized samplingE、signal-to-noise ratio ratio
建筑结构影响系数曲线形状受建筑结构阻尼比影响，下述说法中不正确的是（）。A、阻尼比通常应取0.05，这时阻尼比调整系数应按1采用B、当建筑结构阻尼比大于0.05时，阻尼调整系数小于1C、当建筑结构阻尼比小于0.05时，阻尼调整系数大于1D、阻尼调整系数小于0.30时，应取0.30
Which of the following is the definition of CAS latency？（）A、 CAS latency is the ratio between the column access time and the clock cycle time.B、 CAS latency is the ratio between the row access time and the clock cycle time.C、 CAS latency is the ratio between the column access time and the data burst transfer time.D、 CAS latency is the ratio between the row access time and the data burst transfer time.
问答题If there are only red, blue, and green marbles in a jar, what is the ratio of red to blue marbles? (1) The ratio of red to green marbles is 2:3. (2) The ratio of green to blue marbles is 6:5.
单选题If the compression ratio is increased on any diesel engine, （）Athe expansion ratio will decreaseBcombustion will be slowed downCthermal efficiency will decreaseDthermal efficiency will increase
单选题Which of the following is the definition of CAS latency？（）A CAS latency is the ratio between the column access time and the clock cycle time.B CAS latency is the ratio between the row access time and the clock cycle time.C CAS latency is the ratio between the column access time and the data burst transfer time.D CAS latency is the ratio between the row access time and the data burst transfer time.
单选题For a given fuel, a change in the compression ratio will affect the ignition lag by which of the listed means?（）AAn increase in compression ratio will increase the ignition lagBAn increase in compression ratio will decrease the ignition lagCA decrease in compression ratio will decrease the ignition lagDA decrease in ignition lag will increase the compression ratio
单选题建筑结构影响系数曲线形状受建筑结构阻尼比影响，下述说法中不正确的是（）。A阻尼比通常应取0.05，这时阻尼比调整系数应按1采用B当建筑结构阻尼比大于0.05时，阻尼调整系数小于1C当建筑结构阻尼比小于0.05时，阻尼调整系数大于1D阻尼调整系数小于0.30时，应取0.30
单选题The ratio of the height of a vessel’s rudder to its width is referred to as the（）.Aaspect ratioBconstriction ratioCrudder ratioDsteering ratio
单选题Any ship damping a pipe could（）an immedidate danger of fire.AmeetBfaceCbe in front ofDfollow
单选题In a class of 160 seniors, the ratio of boys to girls is 3 to 5. In the junior class, the ratio of boys to girls is 3 to 2. When the two classes are combined, the ratio of boys to girls is 1 to 1. How many students are in the junior class?A400B360C200D180E160
单选题The ratio of r to s is 3 to 4. The ratio of s to t is 2 to 9. What is the ratio of r to t?A1 to 3B1 to 6C2 to 9D3to10E4 to 5
填空题The ratio of a to b is the same as the ratio of 1.4 to 7. If a＝14, what is the value of b?____