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xy·lem 英ˈzaɪləm美ˈzaɪləmAHDzīʹləm 高ＳCOCA¹¹⁹³¹⁸BNC⁹⁷²³³⁺⁷iWeb³⁵⁵¹⁵
基本英英词源搭配记法例句例句
n.木质部¹⁰⁰
生命的物质基础
Noun:
the woody part of plants: the supporting and water-conducting tissue, consisting primarily of tracheids and vessels来自希腊语 xylon,木头。 xylophone 木琴carinal xylem脊木质部xylem bundle木质部束,木质部维管…centripetal xylem向心木质部xylem sap木质部汁液secondary xylem次生木质部fascicular xylem束中木质部xylem parenchyma木质部薄壁组织…xylem fiber木纤维interfascicular xylem束间木质部xylem ray木质部射线,木射线…centrifugal xylem离心木质部primary xylem初生木质部xylem mother cell木质部母细胞…
xyl-em-内⇒n.木质部
名词100%
用作名词Lignified tissues include SCLERENCHYMA and XYLEM.木质素组织包括厚壁组织和木质部。
Thexylemof ferns only contains tracheids.蕨类植物的木质部只含有管胞。 And therefore the Cd content in grains is determined by root characteristics, root cell wall retention, accumulation of vacuole, extra transport of xylem and phloem re transport.
根系细胞壁对镉的固定、液泡对镉的钝化、木质部液中镉的向外运输以及镉在穗部韧皮部中再运输共同决定籽粒中镉的含量。 cnki
But there was no resveratrol detected in mulberry branch xylem.
在桑枝木质部没有检测到白藜芦醇。 cnki
It is considered that 'ice sink' function, ' supercooling' ability are physiological mechanism of freezing avoidance in Rhododordron flower bud and xylem.
认为“冰洞”作用，“超冷”能力是抗寒杜鹃花芽和木质部薄壁细胞藉以回避冰冻的机制。 cnki
Large proportion of xylem benefit to the water transfer.
叶脉中木质部比重越大，越有利于水分的传输。 cnki
Meanwhile, the appearance of mature xylem cells was about a month later than that of mature phloem cells.
成熟木质部细胞的出现比成熟的韧皮部细胞要晚约一个月。 cnki
Second, environmental factors influence cells differentiation of xylem.
外界环境因子影响木质部细胞分化； cnki
The characteristic of xylem conduit cavitation and embolism and water capacitance reflect the efficiency of water transportation and the function of water storage in tree species.
树体木质部导管空穴、栓塞及其组织水容特征反映了树体内水分的传输效率与存储功能。 dictall
The correlation between the reducing sugar content in phloem and xylem and the ratio of damaged trees was not close.
不同杨树品系韧皮部和木质部的还原糖含量与被害株率没有相关性。 cnki
The extending cotyledon traces differentiate directly from the parenchymatous cells which locate on the outside of the poles of primary xylem.
伸向子叶的子叶迹，直接由原生木质部极外面的一群薄壁组织细胞分化形成。 cnki
The leaf, bud, bast and xylem of type C plant had no components of type A, and showing that the above- ground of type C was already pure.
深州杨 C型植株的叶、芽、韧皮部、木质部已经检测不到深州杨 A型的成分，说明深州杨 C型的地上部分已经纯合； cnki
The protein contents in xylem sap of leaves and stems decreased while increased in the roots under drought stress.
受干旱胁迫的玉米叶和茎木质部汁液中蛋白质含量降低，根中蛋白质含量升高。 dictall
The results also indicated that omethoate was transported to the xylem along with sap flows went upward and then transferred to the phloem as taking a pest-controlled effect.
检测还表明：氧化乐果由木质部随树液向上输导后再转移到韧皮部而起杀虫作用。 iciba
Vascular cambium The ring of CAMBIUM formed by the activity of the interfascicular cambium and the intrafascicular cambium that gives rise to secondary xylem and secondary phloem.
由于维管束内形成层和束间形成层的活动产生的环状形成层结构，它的分裂活动可以形成次生木质部和次生韧皮部。 plb.snnu.edu.cn
Before xylem mother cells reactivated completely, the dividing fusiform cells in cambium and new phloem cells had appeared at the same time.
在木质部母细胞完全恢复活动之前，形成层纺锤状原始细胞的分裂和韧皮部细胞的分化已经开始。 cnki
Between primary xylem and primary phloem there are2—3 layers of parenchymatous cells, regularly or irregularly arranged, but no cambial zone can be recognized.
初生木质部与初生韧皮部之间可见到2—3层排列规则或不规则的薄壁组织细胞，但是没有维管形成层的发生。 cnki
Blade angle is strikingly correlated to xylem water potential at midday.
中午木质部水势与叶片角有显著相关性。 cnki
But the very end of such a network, the leaf, has a different architecture. Unlike the xylem and phloem, the veins in a leaf cross-link and loop.
但网络的最边缘——叶子，却具有不同的结构，与木质部和韧皮部不同，叶子的纹路交叉并成环。 ecocn
In this paper, the transport characteristics of the nitrogenous com-pounds in the xylem sap of soybean plant were studied.
本文研究了大豆植株木质部汁液中氮素运输特征。 http://dj.iciba.com
In the transection section, the area of secondary phloem is much larger than secondary xylem.
在横切面上，次生韧皮部的面积比次生木质部大得多。 cnki
It is an important pathway for movement of these substances outside the xylem, for example across the root cortex.
质外体是木质部外方物质运动的一个重要途径，例如物质穿过根冠。 iciba
Multiple end wall and lateral-wall perforation plates were also observed in the secondary xylem.
在领春木次生木质部中也观察到了端壁多穿孔板及侧壁穿孔板。 cnki
Result The active component content in phloem was the highest, while, successively, in pith and in xylem.
结果大黄中的活性成分含量以韧皮部最高，髓部次之，木质部最低。 chemyq
Results showed that VSP localized mainly in cortex and xylem of branches but not in leaves.
结果表明，银杏营养贮藏蛋白质主要存在于枝条的皮层和木质部中； cnki
The assimilate transports in the phloem by liquid form and the water of the liquid mainly comes from the xylem.
同化物在韧皮部中以液流形式运输，液流中的水主要来自木质部。 cnki
The study indicates the changes of hydraulic architecture parameters with stem segment functional xylem diameter can be modeled by different equation with the decreased twig water potential.
研究表明，随着小枝水势的降低，水力结构各参数随茎段功能木质部直径的变化可以用不同的方程来模拟； cnki
The vascular bundle consists of vascular bundle sheath, xylem, phloem and big parenchymatous cells.
维管束由维管束鞘、木质部、韧皮部和大型薄壁细胞组成。 cnki
The caliber of the secondary xylem of 94-2-3-1 was well developed and it helped to transport the substance and water within the plant and it was hereditary.
后代新品系94-2-3-1次生木质部导管口径大、发达，为植物体内物质及水分的运输提供了有利条件，具有亲本的遗传特性； cnki |