The ovary is 2-loculus with 2 anatropous ovules in each. The ovule is unitegmic and tenuinucellate.

  • 子房2室,每室2个倒生胚珠,具单珠被,薄珠心。
  • 来源:互联网摘选更新时间:2025-01-19 23:51:51

  • 重点词汇
  • andconj. 和,与;而且;于是,然后;因此;
  • inprep. 在里面;在(某范围或空间内的)某一点;在(某物的形体或范围)中;在…内;在…中;进入
  • theart.这个;指已提到或易领会到的人或事物;指独一无二的、正常的或不言而喻的人或事物;用以泛指;与形容词连用,指事物或统称的人;用于姓氏的复数形式前,指家庭或夫妇;(指特定用途的事物)足够,恰好;每,一;当前的,本,此;(重读,表示所指的为知名或重要的人或事物)
  • withprep. 具有;和;用;有;以;跟;同;带有;使用;和…在一起;借;与…对立;关于;包括;因为;由于;与…方向一致;由…持有;为…工作;虽然;作为…的成员,为…所雇用;具有,有,带有;在…身上,在…身边;由于,因;在…那里,在…看来
  • anatropousadj.(胚珠)倒生的;
  • isvt.& vi. 是(be的三单形式);
  • 2 two;
  • ovaryn.[解]卵巢;[植]子房;
  • 相关例句
1、

At the end of February, the bract attained approximately their full size, and a pair of anatropous ovules were initiated on the adaxial surface at the base of the fertile ovuliferous scale.

2月底,苞片体积不再发生变化,珠鳞膨大端的基部的近轴面分化出2个倒生胚珠。

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2、

And the ancestor worship is another important reason.

其次,祖先崇拜观念的根深蒂固也是其产生的重要原因,两者互为依存。

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3、

Ancestor worship is a Chinese tradition dating back thousands of years.

中国祭祀祖先的传统已有数千年之久。

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4、

Miao silver bracelet in silver for the tokens of love, ward off evils, ancestor worship and other activities.

银饰手镯在苗族银饰用于定情,僻邪,祭祖等活动。

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5、

Since women cannot perform the duties of ancestor worship, girl children are often murdered by their parents.

女人不能履行祭祖的职责,所以女婴常常被父母弄死。

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6、

He was able to trace his ancestry back over 1 000 years.

他可追祖溯宗至1000年以前。

《牛津高阶英汉双解词典》

7、

Why would one person have two different ancestries?

为什么一个人会有两个祖先呢?

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8、
9、

For anchor block force calculation, there are three methods, i.e. primary estimation, empirical formula equation and computer assistant software.

管线锚固墩推力计算方法有估算法、公式法和计算机辅助程序计算法三种。苏丹Bamboo输油管线锚固墩的选择证明了这三种计算方法的正确性。

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10、

Origin analysis and treatment of anchor block cracking for Baiyanghe inverted siphon

白杨河倒虹吸镇墩裂缝成因分析及处理

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11、

So the root foundation can be a potential choice for the anchor block of suspension bridge.

根式基础用于悬索桥锚碇将成为一种新的选择。

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12、

The Corbel Supported Method for Constructing the Back Suspended Part of the Weight Anchor Block

悬索桥重力式锚碇锚体后悬段挑梁支撑法施工

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13、

How to Avoid the Oil Leak at Anchor Block of Long-distance Oil Pipeline

防止长输管道在固定墩处漏油的措施

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14、

Scheme Conception of Root Foundation and Anchor Block

根式基础及根式锚碇方案构思

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15、

Design and Calculation of Horizontal Anchor Block in Easy Hoisting Device

简易起重设备中水平地锚的设计与计算

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16、

The research shows that when cone angle is less than some value, its increase will decrease the deformation of an anchor and raise its field load greatly, and for a mono-strand anchor, reasonable cone angle varies from 6.5 ° to 7.5 °.

研究表明,当锥角小于某值时,较大的锥角能明显减小锚具变形;对于单孔锚具,合理的锥角介于6.5°~7.5°之间。

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17、

In this dissertation the structure design of drilling anchor integration operation devices and anchor cable installation device have been finished and the device structure has been optimized by three-dimensional modeling, combining kinematics, dynamics and finite element method for structure.

本论文通过三维建模,结合运动学、动力学和结构的有限元分析方法,完成了钻锚一体化作业装置和锚索安装装置的结构设计,优化了装置结构。

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18、

This paper presents the content and method of design and calculation of horizontal anchor block in hoisting device by using some examples.

地锚是起重系统的根基,对吊装作业的安全意义重大,本文通过实例介绍水平地锚设计计算的内容和方法。

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19、

The Design of New Style Soil Anchor KC-1 Expansion Device

新型土锚扩孔机具KC-1型扩孔器的研制

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20、

Suction Anchor Bucket Device and Platform with Bucket Foundations for Piling Operation

筒型基础和吸力锚筒水上沉桩装置

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