However, there are indirect methods for measuring their weights exactly.

In the indirect method the model can be of any material.

It is, however, an indirect method of providing job opportunities to those left behind.

So astronomers use some more indirect methods beyond a few thousand light years.

So scientists were left to use indirect methods that usually cannot provide a clear answer.

The computer information I obtained was only for the past year and called up by an indirect method.

The state has used both direct and indirect methods to affect decisions.

Because of their convenience, indirect methods are used most commonly.

At the present time, several different indirect methods have yielded success.

Second language vocabulary can often be learned through indirect methods such as reading.