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单词 Directly proportional
释义

Directly proportional

原声例句
可汗学院:物理

So we see that they are directly proportional, and the mass is that how proportional they are.

由此我们可以得出 力与加速度为正比例关系。质量是他们的比例常数。

Scishow 精选系列

In fact, some studies have shown that the amount of oil uptake is directly proportional to the amount of water that's lost.

事实上,一些研究已经表示,吸油量直接于失水量呈正相关。

Veritasium真理元素

Air resistance is directly proportional to the density of air you're moving through.

空气阻力与您所穿过的空气密度成正比。

Crash Course Physics 速成课物理

When resistance is constant, voltage is directly proportional to current.

当电阻恒定时,电压是瞬时的 与电流成正比。

TED Radio Hour

The drying time in your question seems to be directly proportional to the number of clothes.

你问题中的干燥时间似乎与衣服的数量成正比。

呼吸系统

The rate of diffusion is directly proportional to the concentration gradient of each gas.

扩散速率与每种气体的浓度梯度成正比。

呼吸系统

Additionally, the rate of diffusion is directly proportional to pressure, which helps to push the gas into solution.

此外,扩散速度与压力成正比,这有助于将气体推入溶液。

呼吸系统

The partial pressure of a gas is directly proportional to both the concentration of the gas and pressure.

气体的分压与气体的浓度和压力成正比。

呼吸系统

That diffusion occurs across the respiratory membrane, and it's directly proportional to the concentration gradient of the gas and pressure.

这种扩散发生在呼吸膜上,它与气体浓度梯度和压力成正比。

SciShow - Chemistry

In fact, some studies have shown that the amount of oil uptake is directly proportional to the amount of water that’s lost.

事实上,一些研究表明, 吸油量与流失的水量成正比。

大英百科全书

Kepler's third law states that the squares of the sidereal periods of revolution of the planets are directly proportional to the cubes of their mean distances from the Sun.

开普勒第三定律指出,行星公转周期的平方与它们到太阳的平均距离的立方成正比。

三体 I

You must know that a person's ability to discern the truth is directly proportional to his knowledge." " I'm not sure about that.

要知道,一个人辨别真相的能力,是和他的见识成正比的。” “这个我不太确定。

IELTS Reading

At night, these molecules change states, and the pace at which they change is 'directly proportional to temperature', say scientists, who compare phytochromes to mercury in a thermometer.

科学家说,在晚上,这些分子会改变状态,而它们改变的速度“与温度成正比”,他们将光敏色素比作温度计中的水银。

呼吸系统

It's important to note that gas exchange is directly proportional to the partial pressure gradient across the respiratory membrane, as partial pressure takes into account both concentration and pressure.

需要注意的是,气体交换与呼吸膜的分压梯度成正比,因为分压同时考虑浓度和压力。

就业、利息和货币通论(下)

For in this case, O being constant and M2 being zero, it follows, if we can take V also as constant, that both the wage-unit and the price-level will be directly proportional to the quantity of money.

因为在这种情况下,O 为常数,M2 为零,如果我们也可以将 V 也取为常数,则工资单位和价格水平都将与货币数量成正比。

中文百科

比例 Proportionality (mathematics)

(重定向自Directly proportional)
y 正比于 x。
Los dos rectángulos con franjas son semejantes, los cocientes de sus dimensiones se indican horizontalmente en la imagen. La duplicación de la escala del triángulo con franjas se indica oblicuamente en la imagen.

在数学中,比例(英语:ratio)是两个非零数量 yx 之间的比较关系,记为 y:x \ (y, x \in \mathbb{R}),在计算时则更常写为 \frac{y}{x}y/x。若两个变量的关系符合其中一个量是另一个量乘以一个常数(y=kx),或等价地表达为两变量之比率为一个常数(称为比值y/x=k),则称两者是成比例的


如果 yx 是可通约的,亦即它们之间存在一个公测量 (common measure) m \ (m \in \mathbb{R}) 使得 y = mp, x = mq, p, q \in \mathbb{Z}y:x 就相等于两个整数的比:y:x = mp:mq = p:q,那么 y:x 就称为可通约比 (commensurable ratio),\frac{p}{q} 称为一个分数,其比值称为有理数;否则,如果不存在一个公测量,y:x 就称为不可通约比 (incommensurable ratio),其比值称为无理数,亦即无法表达为分数的数。

英语百科

Proportionality (mathematics) 比例

(重定向自Directly proportional)
Variable y is directly proportional to the variable x.
Inverse proportionality with a function of y = 1/x.
y 正比于 x。
Los dos rectángulos con franjas son semejantes, los cocientes de sus dimensiones se indican horizontalmente en la imagen. La duplicación de la escala del triángulo con franjas se indica oblicuamente en la imagen.

In mathematics, two variables are proportional if a change in one is always accompanied by a change in the other, and if the changes are always related by use of a constant multiplier. The constant is called the coefficient of proportionality or proportionality constant.

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更新时间:2025/6/18 10:53:51