与"hard and soft acid and base"相近的词条

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• hard
• hard abdominal mass
• hard acid
• hard-and-fast
• hard and fixed mass in the abdomen
• hard and soft acid and base
• hard area
• hard attack
• hard back cassette
• hard-baked spleen
• hard bark
• hard base
• hard-based bed
• hard-based seat
• hard baseplate wax
• hard bast

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