英语翻译 The upward forces are due to the tension in the cord.

英语翻译 The upward forces are due to the tension in the cord.
英语翻译 The upward forces are due to the tension in the cord.

英语翻译 The upward forces are due to the tension in the cord.
翻译为：向上的力是由于绳子的张力.
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