xylem development造句
造句与例句
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- The xylem development was'mesarch', i . e . the first maturing protoxylem had later maturing metaxylem on either side.
- Much later, in 1967, it was shown that fossils called " " Psilophyton princeps " " had two very different patterns of xylem development : from the centre outwards ( centrarch ) in " P . princeps " and from the outside inwards ( exarch ) in " P . princeps " var . " ornatum ".
- It's difficult to see xylem development in a sentence. 用xylem development造句挺难的
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