tang.ible|tact-, tang-=tag-, tig-, ting- =touch 接触 切实的，明显的

• While values of linkage disequilibrium, N and h2 can be proposed on relatively tangible grounds, the same cannot be said for the number of QTL controlling the traits under selection. (Grattapaglia, Resende, 2011)
• Studies on forest trees are able to follow successfully the methods applied in human, animal, and plant cytogenetic studies, but usually have not been pursued in depth, e.g., in an integrated long-term breeding and cytogenetic program with tangible objectives. (Burley, Evans, Youngquist, 2004)
• Diversified expressions of totipotency may have value in exploring how investments in clonal somatic embryogenesis may someday deliver tangible genetic gains in boreal forests faced with global warming. (Park, Bonga, Moon, 2016)