| 1. | It depends on measurement of controlled variable .
它取决于控制变量的测量。 |
| 2. | Demography is the analysis of population variables .
人口学是对人口变量的分析。 |
| 3. | A single index may reflect a composite, or group, of changing variables .
指数可以用于反映一组变量的综合变化。 |
| 4. | An exponential function is one in which the variable appears in an exponent .
指数函数是指数中出现变量的函数。 |
| 5. | The minimum number of state variables required is the order of the system .
所需要的状态变量的最低数量是系统的阶次。 |
| 6. | A value index measures general changes in the total value of some variable .
价值指数用以度量某些变量的价值总量变化。 |
| 7. | Plant growth will be highly sensitive to the manipulation of this variable .
植物生长对于这一变量的施用表现出很高的敏感度。 |
| 8. | He now called a variable quantity a fluent and its rate of change, the fluxion .
他现在把变量叫做流，变量的变化率叫做流数。 |
| 9. | Aerodynamic forces and moments are strictly speaking functionals of the state variables .
严格说来，气动力和力矩是状态变量的泛涵。 |
| 10. | The essence of such models is the introduction of lags in the adjustment of variables .
这类模型的实质是在变量的调整中引进时间滞后的概念。 |
