zhuāng : wén > chái zhōng yāng
mùlù
wèi xiàng bān xīn 'ér zhōng yāng Inadvertent and that a camel stand as the central dead wood
  wèi xiàng bān xīn 'ér zhōng yāng。《 zhuāng · shēng》: 'ér cáng chū 'ér yáng chái zhōng yāng guō xiàng zhù:“ ruò gǎo zhī xīnér zhōng shì。” wáng xiān qiān jiě yǐn xuān yíng yuē:“ gǎo zhī xīn 'ér dòng jìng zhī zhōng。” sòng qín guānyóu tānɡ quán 》:“ shì quán chū kàng mǎn zhī lěi rén suǒ wèi chū 'ér yáng 'ér cángchái zhōng yāng zhě ?”
yǐn shēn wéi zhōng Extension for the neutral
  yǐn shēn wéi zhōng liáng chāojiā de kān dìng nán 》:“ shì jiā 'ěr yòu chū wài jiāo shǒu duànér chái zhōng yāngruò wéi wén jiā de zhī yīn móu zhě jié zhìér tīng 。”