您要查找的是不是：
- 阼steps leading to the eastern door
- 阶乘factorial
- 色阶color gradation
- 一阶single(-)order
- 阶数exponent number
- 低阶low level
- 一阶导数first derivative
- 灰阶gray scale
- 门罗阶Monroe stage
- 杰克逊阶jacksonian stage
- 把空奶瓶放到门阶上，等送奶人来取。Put your empties on the doorstep for the milkman.
- 阶调contrast
- 富兰克林阶Franklinian
- ｎ阶n-order
- ｎ阶矩nth moment
- 阶地砂矿bench placer
- Ｂ阶材料B-stage material
- Ｋ阶零点zero point of k-th order
- ｎ阶差分difference of nth order
- ｎ阶分布nth order distribution
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries
