Spring trip standard for cultivators

• 1. 一种春游用自动收缩帐篷 [P] . 中国专利： CN109083491A . 2018-12-25
• 2. 一种具有地块整理功能的中耕机 [P] . 中国专利： CN215648108U . 2022-01-28
• 3. Spring trip standard having reduced spring buckling forces [P] . AU766218B2 . 2003-10-09

  机译： 弹簧行程标准具有减小的弹簧屈曲力

• 4. SPRING TRIP STANDARD HAVING REDUCED SPRING BUCKLING FORCES [P] . CA2298924C . 2003-09-16

  机译： 弹簧行程标准具有降低的弹簧屈曲力

• 5. SPRING TRIP STANDARD HAVING REDUCED SPRING BUCKLING FORCES [P] . CA2298924A1 . 2000-12-03

  机译： 弹簧行程标准具有降低的弹簧屈曲力

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• 1. A Review of White Granulated Sugar Standard Development in China and Comparative Study on the Chinese White Granulated Sugar Standard with International Standard [J] . DENG Dandan ,SHEN Li ,LI Mei . 甘蔗糖业 . 2021,第006期
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