更多"物质流通率 ratio of material flow"的相关试题:
[填空题]物质流通费可以细分为（）、包装费、储存费、装卸搬运费、（）。
[单项选择]Compensated flow control or constant flow valves are used in hydraulic systems to（）
A. compensate for major leaks in the system
B. maintain the original fluid viscosity
C. allow for changes in pressure and temperature within the system
D. assure constant fluid temperature
[名词解释]抚养比(dependency ratio)
[名词解释]氮素有效性比率 nitrogen availability ratio
[名词解释]绿信比（Green Time Ratio）
[单项选择]low flow sensor位于（）
A. 主电子设备舱
B. 驾驶舱
C. 前电子设备舱
D. 空调舱
[名词解释]信息流（Information Flow）
[名词解释]营养物质 nutritive material
[单项选择]Worn main bearing will cause the compression ratio of an auxiliary diesel engine to（）
A. increase
B. decrease
C. remain the same
D. increase on compression decrease on expansion
[单项选择]Increasing the compression ratio of a diesel engine while maintaining the designed rate of fuel flow will result in （）
A. increased horsepower
B. reduced efficiency
C. increased heat loss
D. lower cylinder pressures
[名词解释]胡敏酸 - 富啡酸比值 HA/FA ratio
[单项选择]If the compression ratio is increased on any diesel engine, （）
A. the expansion ratio will decrease
B. combustion will be slowed down
C. thermal efficiency will decrease
D. thermal efficiency will increase
