He can predict a typhoon by rule of thumb.

他能凭经验预测出台风。

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I never measure rice and water when I'm cooking - I just do it by rule of thumb.

我做饭时，从不量米量水，只凭经验。

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Due to conventional cementing is designed by rule of thumb, cementing quality can't be assured.

常规油井注水泥一直是凭经验进行设计，固井质量无可靠把握。

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The concept, widely used as a rule of thumb by astronomers, was codified last year by Dr. Mendez and his colleagues into a more formal Habitable Zone Distance scale.

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To do so, he follows an old rule of thumb used by mothers and psychologists to get people to change their behaviour.

ECONOMIST: Vertigo: A new kind of pacemaker | The

Subtract all expenses and property taxes (30% of the rent is a good rule of thumb) and multiply by 12 to get the annual net operating income.

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