rule of thumb

As a rule of thumb, a cup of filter coffee contains about 80mg of caffeine.

凭经验估计，一杯过滤咖啡约含80毫克咖啡因。

As a rule of thumb , the minimum device feature is about 4 times the beam diameter.

一般来说, 最小器件图形大约是电子束直径的4倍.

As a rule of thumb, a one - cent - a - gallon gasoline tax raises $ 1 billion.

一般情形是, 每加仑加汽油一分钱的税可以征收10亿元.

We aim for 80 % contrast as a general rule of thumb.

我们认为的最佳的对比度是80%,这可以作为一般的经验值.

A rule of thumb is to allow flexibility with length.

一条经验法则是允许灵活性和长度.

As a rule of thumb, the higher the better.

就想拇指规则一样, 越高越好.

He often works by rule of thumb.

他通常凭经验办事.

I just do it by rule of thumb.

我凭经验做的.

He can predict a typhoon by rule of thumb.

他能凭经验预测出台风.

All those figures were worked out by rule of thumb.

所有这些图形都是凭经验作出来的.

A good rule of thumb is that a broker must generate sales of ten times his salary if his employer is to make a profit.

根据经验来看，如果雇主要获得利润，那么其代理商必须卖出相当于其工资10倍的销售额。

In the bond market rule of thumb was low credit quality equals high returns.

债券市场的经验也是低信贷质量等于高回报.

A teacher's most basic rule of thumb is: be patient.

教师最根本的法则是耐心.

The rule of thumb in this business is courtesy.

这门生意的形式法则是礼貌至上.

He worked out how much wood he'd need by rule of thumb.

他靠经验计算出他需要多少木料.