Especially, the transformers that are used in telecom and wideband networks act as an important part and become a pith of parts.

通讯及宽带网络用宽带脉冲变压器也担当起“重任”，成为宽带网络产品的核心元件之一。

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At the upper and the middle part of hypocotyl, the pith appears, and the order of the primary xylem differentiation is endarch.

在下胚轴中、上部，髓部开始出现，初生木质部分化顺序为内始式；

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At the upper and the middle part of hypocotyl, the pith appears, and the order of the primary xylem differentiation is endarch.

在下胚轴中、上部，髓部开始出现，初生木质部分化顺序为内始式；

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