liángshǔ
ляншу
лян2 шу3
http://www.chinese-russian.com/zd/ci/9375
liǎngshǔ
лян3 шу3
http://www.chinese-russian.com/zd/ci/66203
liàngshù
лян4 шу4
http://www.chinese-russian.com/zd/ci/61251