Hello Mai Van, To simplify things in the mind a bit, the shortest way to say it would be: A soda can supports one hundred kilograms. "Tensile strength" is a common phrase used in science, so your example is correct this way, as your book said: The average soda can has a tensile strength capable of supporting a weight of one hundred kilograms. If you wanted to use the words "strong" and "capacity" in this sentence, you would have to alter it to something like this: The average soda can is strong, having the capacity to support a weight of one hundred kilograms.
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