leaf [li:f]

leaf的基本解释

n.

叶, 树叶, 花瓣, 页

• He tore a leaf out of his notebook.
• 他从笔记本上扯下一页。

vt.

翻...的页, 在...上长叶

• He was leafing a magazine.
• 他正在翻阅一本杂志。

vi.

生叶, 翻书页

• I leafed through the catalog and found nothing interesting.
• 我翻了翻目录，没看到什么有趣的东西。

• The trees on the hill are just leafing out.
• 山上的树正在长出新叶。

• The trees leaf out in the spring.
• 树在春季长叶。

leaf的同义词

v. thumb · riffle

n. folio

与leaf相关的词组

turn over a new leaf：翻开新的一页

leaf through：翻书页, 翻阅

leaf所属的单词分类

Plant / 植物 [187]

vascular plant  ·  terminal bud  ·  simple leaf  ·  sea weed  ·  sage brush  ·  petrified wood  ·  opposite leaves  ·  lateral bud  ·  lanceolate leaf  ·  incomplete flower

Autumn / 秋天 [51]

Thanksgiving  ·  spider's web  ·  pine cone  ·  hayride  ·  chestnuts  ·  autumnal equinox  ·  cool  ·  web  ·  turkey  ·  squash

与leaf相关的网络例句 [注：此内容来源于网络，仅供参考]

The main results were showed as follows:Through screen and identification of morphology in M_2 and M_3, respectively, the mutants with mutative traits of plant were found. In which, 11 mutations were leaf variations, including light-green leaf, deep-green leaf, durative yellowish leaf, temporary yellowish leaf, inlaid yellowish leaf, wrinkly leaf, smooth-edged curly leaf, splitting-shaped curly leaf, peduncular-shaped leaf, round leaf and larger leaf, 12 were mutations on plant type, including excessive branches, lacking branches, highness, dwarf-like, erect posture, reclinate posture, strong stalk, slender stalk, tufty branches, wrinkled plant, purple stalk and hair-covered plant, 14 were flower variations, including dense flowers, light-yellow petals, white petals, white-mosaic petals, wrinkled petales, back-rolled petals, narrow petals, larger petals, smaller petals, apetalous flowers, variable-numbered petals, fertile pistil protraction, sterile pistil protraction and multi-anther, and 5 were physiologic mutants, including genic male sterile, cytoplasmic male sterile, bud-dead, and early and later bloom.

主要结果如下：通过田间M_2筛选和M_3重复鉴定，在田间农艺性状方面共获得浅绿叶色、深绿叶色、转绿黄化叶、持续黄化叶、边缘黄化叶、皱缩叶、光叶型卷叶、裂叶型卷叶、薹叶形叶、宽圆叶和大叶等11种不同的叶部性状突变体；同时还筛选到多分枝、少分枝、高杆、矮杆、株型紧凑、株型松散、粗茎、细茎、丛生分枝、整株皱缩、紫茎、整株被毛等12种植株性状突变体，密花、浅色花瓣、白色花瓣、白斑花瓣、皱瓣、卷瓣、窄瓣、大瓣、小瓣、无瓣、花瓣数目不定、可育型柱头外露、不育型柱头外露和多雄蕊等14种花器性状突变体，以及细胞核雄性不育、细胞质雄性不育、死蕾、早花和迟花等5种生理性状突变体。

The canopy structure and leaf morphological characters of 4 sugarcane genotypes at different leaf layers on seedling were studied by using CI-100 plant canopy instrument and CI-203 area meter instrument. The results showed the leaf morphological parameters, canopy structure and radiation transmission at different leaf layers were notably different among different genotypes. The variation of Ila, Amfi, Dl at different leaf layers were mainly caused by the leaf width at relevant position. The variation of K at different leaf layers was related to Amfi and Dl. The variation of Td（transm. coef. for diffuse penetration）had significant correlations with Ila, Amfi and Dl. The variation of Tr（transm. coef. for radiation penetration）had significant correlations with Dl, leaf width and the ratio of leaf length to width. The variation of Par had significant correlations with Ila, leaf area, leaf width and the ratio of leaf length to width.

摘要利用CI-100数字植物冠层分析仪和CI-203叶面积分析仪测定了4个甘蔗品种不同叶位层的冠层参数和相应叶位叶片的形态特征，结果表明：不同基因型不同叶位层间叶片形态、冠层空间结构和冠层辐射特征存在显著差异，不同叶位层叶面积指数、叶簇倾角和叶分布的变化主要由冠层内不同叶位叶片叶宽的变化引起，而不同叶位层消光系数的变化主要与叶簇倾角和叶分布有关；散射光透过系数的变化主要与叶面积指数、叶簇倾角和叶分布有关，直射光透过系数的变化主要与叶分布、叶宽、长宽比有关，光合有效辐射的变化与叶面积指数、叶面积、叶宽、长宽比有关。

Treatments were as follows: fertilization during leaf-expansion period, fertilization during green-leaf period, and no fertilizer. Results showed that individual leaf area, thousand-leaf weight, and leaf distribution were relatively stable with little influence from fertilization. Fertilization during leaf-expansion compared to the green leaf period significantly increased leaf number, leaf weight per plant, and leaf area index. Fertilization during led-expansion also significantly increased the total weight of leaves corresponding to each branch. The 14th to the 17th branches had the largest number of leaves in the canopy with fertilization increasing the weight of each branch but not changing the center of the canopy.

结果表明：毛竹单叶面积、千叶质量和叶片分布受施肥的影响较小，是较为稳定的指标；展叶期施肥处理（处理1）能显著增加单株立竹的叶片数量，到7月底，其单株立竹叶片总质量和叶面积指数分别比绿叶期施肥（处理2）提高14.8%和13.7%，比不施肥提高27.6%和24.5%；冠层14~17档是单枝叶片数量最多的区域，施肥能增加各枝盘叶片的质量，但对林冠重心的分布无影响；单叶叶面积稳定后（6月），处理1的叶绿素测定值和光合速率显著高于处理2和对照，而处理2与对照间无显著差异。

与leaf相关的网络解释 [注：此内容来源于网络，仅供参考]

leaf：树叶

在这个句子中,紧随其后的图案为,它的意思是"树叶"(leaf)、"离开"(leave)或"存在"(lieve),这三个词的发音相同. 接下来的图案又是"眼睛",前面已经讲过它的意思. 最后,你遇上了图案,它是一只长颈鹿. 这个词属于古代埃及图像语言保留的一部分,

leaf：叶子

这款被命名为"叶子"(leaf)的四门掀背车基础价格为3.278万美元,但因其环保性能可享受7500美元的联邦税收减免,这使得叶子比任何其它品牌的电动汽车价格都更低廉,此举可能会迫使其它竞争对手降价.

leaf：叶

至於页码的对照,Z 是算 "叶"(leaf)的,Z 的一叶等於 R 的两页,所以 Z 的一叶有四栏. 也就是 R 的页码除以2,再加上余数,就是 Z 的页码. R 的奇数页是 Z 的 a,b 栏,而偶数页是 Z 的 c,d 栏. 行号,R 跟 Z 一样.

leaf：叶片

涵盖了广泛的选择方案. 这两个计划几乎都要求商业航天公司更换执行地球低轨道飞行任务的战神1号(the Ares I)火箭,同时确定战神5号火箭是美国宇航局未来的中流砥柱. 日本横滨,记者们在为尼桑新型电动车"叶片"(Leaf)拍照.

leaf：abbr. large effective area fiber; 大有效面积光纤leaf