Note 4-The ability to describe and identify soils correctly is learned more readily under the guidance of experienced personnel, but it may also be acquired systematically by comparing numerical laboratory test results for typical soils of each type with
Note 4-The ability to describe and identify soils correctly is learned more readily under the guidance of experienced personnel, but it may also be acquired systematically by comparing numerical laboratory test results for typical soils of each type with
注4-在有经验的人员的指导下,正确地描述和鉴别土的能力是很容易被学习到的.但是它也可以经过比较足够数量的试验室对于每种土的典型土样的测试结果和它们的视觉和触觉性质来系统的获得.