“disappearing stair”的概念、定义、翻译、参考文献-科学参考

单词	disappearing stair
释义	disappearing stair [`dis·ǝ´pir·iŋ `ster] ^{BUILDING CONSTRUCTION} A stair that can be swung up into a ceiling space.
随便看	pathotoxin pathovar path plotting Patientia patina patio process patroclinous inheritance Patroclus group patronite pattern pattern analysis pattern bombing pattern card pattern chain patterned ground pattern flood pattern formation pattern gene pattern generator pattern harmonization pattern recognition pattern-sensitive fault pattern shooting Patterson function Patterson-Harker method

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