The concept of an alternation of generations can be extended to the flowering plants, in which the embryo sac and pollen represent the much reduced famale and male gametophyte generations respectively.

  • 这个概念也可以运用在有花植物上,由胚囊和花粉各自表达雌雄配子体世代。
  • 来源:provided by jukuu更新时间:2025-01-19 22:26:54

  • 重点词汇
  • maleadj.男性的;雄性的;有力的;[植]雄性的,仅有雄蕊的;
  • muchadv.非常;差不多;很多地;很大程度上;
  • sacn.(动植物组织中的)囊,液囊;
  • alternationn.交替,轮流,间隔;交替工作;更迭;变换;
  • representv.代表;象征;维护…的利益;相当于;描绘;正式提出;
  • generationsn.代( generation的名词复数 );(家史中的)一代;产生;一批;
  • ofprep. 关于;属于…的;由…制成;
  • andconj. 和,与;而且;于是,然后;因此;
  • gametophyten.配偶体;
  • 相关例句
1、

Methods: The pressure of cheek and tongue on mandibular and maxillar first molars was measured with a computer aided perioral force measuring system in 16 patients ( 8 male and 8 famale) with constrictive maxillary arch.

方法:用新型计算机辅助口周力测量系统对16名上颌牙弓狭窄患者上下颌第一磨牙颊侧、舌侧进行口周力测量。

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2、

Compared to famale, mandibula shows larger tendency of forward and deorse in accelerated phase, deceleration phase, maturation phase in male.

与女性相比,男性在加速期、减速期及成熟期表现出更大的下颌向下向前的生长趋势。

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3、

A Clinical Research on Multiple Primary Malignant Tumor of the Famale Reproductive Tract

女性生殖系统多原发性恶性肿瘤的临床研究

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4、

[ Results] The health risk behavior of male and famale students had certain differences.

[结果]不同性别学生健康危险行为有一定差异。

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5、

There are 379 famale staff took the physical examination, however, 135 did not take gynecological examination, the rate is 35.6%.

参加体检的在职女教职工379人,135人未进行妇科检查,未参检率为35·6%。

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6、

Aiming at the injection mold structures of female mold on stationary mold, the force on the famale mold and male mold are analysed, and the cavity wall thickness are calculated.

针对凹模安装在定模上、凸模安装在动模上的注塑模结构,对矩形型腔模具进行了受力分析和型腔壁厚计算。

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7、

Clinical and pathological analysis of 29 cases Signer's syndrome renal injury in famale

29例女性干燥综合征的肾脏损害分析

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8、

MATERIAL AND METHODS: Forty famale BALB/ c mice inoculated with EMT-6 breast cancer cells were divided into tumor-control group and 10 、 100 and 200mg/ kg GPC groups.

方法与材料将接种EMT-6乳腺癌细胞的40只雌性BALB/c小鼠随机分为肿瘤对照组和GPC(10、100、200mg/kg)3个剂量组,每组10只。

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9、

A Research about the Ability of Female Judgements in Soccer Competes& Baced on the Secondly Phase Famale Super Soccer Competes of China in Meizhou Section

我国女子足球裁判员裁判能力分析研究&以2000年女足超级赛第二阶段梅州赛区为案例

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10、

The famale reproductive system of P. striatus consists of paired ovary, two lateral oviducts, spermatheca, a bursa copulatrix and single one accessory gland.

雌性生殖系统由一对卵巢、一对侧输卵管、一个中输卵管、受精囊、交尾囊和一个附腺构成。

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11、

Male children are 24.03% and famale children are 22.36% ( P> 0.05).

男童为24.03%,女童为22.36%(P>0.05);

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12、

To study obesity in rural middle school by measuring weight and height and Bioelectrical Impedance analysis. The results show that the obesity morbility is 14. 85% in 842 students aged 14-19 years, male 15.10% and famale 14.55%.

江苏省泰兴市农村中学生的肥胖发生率的流行病学调查表明:14~19岁中学生肥胖的检出率为14.85%,其中男生为15.10%,女生为14.55%。

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13、

One Se pellet weighted 10g was taken in by each sheep of experimental groups. After seven months ( 210d), The results showed that non pregnancy rate of famale sheep decreased by 42.67% than those of famale sheep of controlled groups.

给试验组羊每只投服10g硒弹丸1枚7个月(210d)后进行测试,其结果表明:试验组比对照组母羊的空怀率下降了42.67%;

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14、

Most of the famale students in my class appear to be ill at ease when required to answer question.

我们班里大多数女生在呗要求回答问题时都似乎感到不自在。

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15、

Ultrasonography Diagnosis of Deputy Galactophore of Famale

女性副乳腺的超声诊断

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16、

The famale members of the rich family usually took the duty of teaching.

士人家庭中的女性常常承担教育子弟的责任.

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17、

Objective To study Phosphorus pentasulfide on eyes for the exposed workers.

目的探讨五硫化二磷对作业工人眼部的影响.

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18、

The barge collision impact forces determined by eqs.

通过公式确定驳船撞击力。

provided by jukuu

19、

We have suggested Eqs. ( 3) and ( 12) to formulate the effective conductivities for dual and non-dual materials.

建议用文中的(3)和(12)式概括两元性和非两元性复合材料的有效电导率。

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