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The electric current varies directly as the voltage if the resistance is definite. 如果电阻一定，电流与电压成正比。
Take notice that density varies directly as pressure if other conditions do not change. 注意,如果其他条件不变,密度与压力成正比。
An electric current varies directly as the electromotive force and inversely as the resistance. 电流的大小与电动势成正比，与电阻成反比。
As seen form the table, the density of air varies directly as pressure, with temperature being constant. 从表中可以看出，在温度不变的情况下，空气的密度与压力成正比。
The law of electric current is that an electric current varies directly as the voltage and inversely proportional to the resistance. 电流定律就是：电流与电压成正比，与电流成反比。
At a given temperature ,the rate of a reaction varies directly as the product of the concentrations of the reactants in the slowest step. 在某一给定的温度下，反应速率取决于最慢的那个反应步骤中的反应物浓度。
The value of a commodity, therefore, varies directly as the quantity, and inversely as the productiveness, of the labour incorporated in it. 可见，商品的价值量与体现在商品中的劳动的量成正比，与这一劳动的生产力成反比。
vary directly as M 和M成正比例
vary directly as ... 和 ... 成正比
In a constant resistance D.C circuit the current will vary directly proportional to the voltage. 在电阻不变的直流电路中，电流和电压成正比。
vary directly as adv. 成正比于(和 ... 成正比例)
The CD-ROM is easy to use directly as a teaching aid in classroom. 在课室直接使用光碟作教材是否容易?
10. With a given resistance, the current varies directly as the voltage. 在给定电阻情况下,电流和电压成正比。
GRAPE SEED can also be used directly as massage oil. 也可以直接作为按摩油。
EVOIL? ALMOND can also be used directly as massage oil. 可以作为按摩油直接使用。
The volume of a gas varies directly with the temperature. 气体的体积和温度成正比。
The electric current varies directly with the voltage. 电流与电压成正比。
Americans eat corn directly as a vegetable and in cereals and other foods. 美国人把玉米当蔬菜，粮食以及其他的玉米食物直接食用。
Christ and Mithra were both referred to directly as the "Logos" (Larson 184). 基督与密特拉两者都直接地提及到“逻各斯（Logos，道，道体，道成肉身）。”
Pressure varies directly with temperature and inversely with volume. 压力随温度成正比例变化,与容积成反比例变化。