xylem怎么讀，xylem什么意思，xylem短語和例句

1.Summertime bud grafting can be cut take shoot piece, or take xylem shoot less piece, in stock bine dry place decorticates.

夏季芽接可削取芽片，或少帶木質部芽片，在砧木莖干處剝皮。

2.The secondary xylem of the original plants in local acidic environment was replaced by silica and turned into fossil woods.

處在酸性壘的原植物次生木質部組織被二氧化硅替換而成硅化木。

3.The harmful effect of injecting chemical into tree on the xylem, bast, periderm and tree body was studied.

本文就樹干注入農藥，對木質部、韌皮部及周皮和整個樹體是否產生不良影響做出評價。

4.The positive xylem pressure, often occurs with low transpiration rate, is termed as root pressure.

在植物弱蒸騰情況下，木質部的水分處于正壓狀態，這種壓力叫根壓。

5.The discovery of nuclei existing in mature xylem cells is a new one in Wood Anatomy.

在成熟木材細胞中發現細胞核是木材解剖學的新發現。

6.A system confined to the transport of mineral elements is known as the xylem.

專門用來運輸礦物元素的系統稱為木質部。

7.The vascular bundle consists of vascular bundle sheath, xylem, phloem and big parenchymatous cells.

維管束由維管束鞘、木質部、韌皮部和大型薄壁細胞組成。

8.The secondary xylem of the original plants in local acidic environment was replaced by silica and turned into fossil woods.

處在酸性壘的原植物次生木質部組織被二氧化硅替換而成硅化木。

9.It is an important pathway for movement of these substances outside the xylem, for example across the root cortex.

質外體是木質部外方物質運動的一個重要途徑，例如物質穿過根冠。