5. (5.0 points )Steel is outstanding as a structural material, because it never deforms and can thus be used in skyscrapers.
举一反三
- Steel is an outstanding structural material. It has a high elastic modulus, which results in small deformations under load.
- In conventional reinforced concrete, the high tensile strength of steel is combine with concrete's great ________________ to form a structural material that is strong in both ________ and ________.
- This knife is made of steel __________ and it can be used for a long time.
- Which material can be used for the burs?
- Which material can be used for the drill handle?