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1·There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma, the axial tracheid and the ray tracheid.

轴向管胞之间、轴向管胞与射线薄壁细胞之间、轴向管胞与射线管胞之间，均有不同类型的纹孔对。

2·There are different types of pit-pair between the axial tracheids. the axial tracheid and the ray parenchyma , the axial tracheid and the ray tracheid.

轴向管胞之间、轴向管胞与射线薄壁细胞之间、轴向管胞与射线管胞之间，均有不同类型的纹孔对。

3·For this pair of concerned countries, it is an open pit really.

这对有关国家来说，真是一个公开的陷阱。

4·The pair enjoyed a great battle for the lead for the first half of the race until Doran ran out of fuel as he entered the pit lane for a scheduled stop.

两人享有一个伟大的战斗，带头为上半年的比赛之前，多兰中将失控，燃料，因为他进入基坑里为如期停止。