探明

jù shuō kē xué yǐ jīng tàn míng qí wēi xiǎn xìng fēi cháng xiǎo

据说科学已经探明其危险性非常小。

It is said that science has determined that the risk is very small.

méi chǔ liàng nán tàn míng

煤储量难探明。

It's very difficult to ascertain the coal deposits.

tàn míng yòng yì

探明用意

try to find out what come for

xīn yóu tián de hán yóu céng jié gòu yǐ tàn míng

新油田的含油层结构已探明。

The oil-bearing structure of the new oil field has been verified.