查询词典 species

This indicates that seed production of the studied species must be reduced by available resources. To detect the difference of seed production between flowers pollinated by self and outcross pollen, hand pollination for bagged flowers has also been conducted in natural populations of the two Pedicularis species.

除了上述结果外，我们的人工实验还表明，人工补充授予同株或异株的花粉都未能增加种子产量，而疏花处理则明显的增加了剩余花的结实，这说明较之于花粉数量的限制而言，资源限制是影响这两种植物雌性育性的原因。

The calcination of the catalysts at high temperature may easily result in theformation of tetrahedral structure Mo species before sulfidation,and decrease theamount of octahedral coordination Mo species.The sinter and loss of the activecomponents would take place during the calcination at overhigh temperature. Meanwhile,the active component could react with support,thus made the activecomponents entered into support bulk phase.

7催化剂在硫化前进行高温焙烧，容易形成四面体结构的钼物种，而八面体配位钼物种减少，且过高的焙烧温度易使活性组分发生烧结，同时可能发生活性组分的流失或与载体发生反应进入载体体相。

The results showed that there are almost the same species composition in the overstory as in the understory at current stage, and the species composition would not be change on large scale in short-term time without a big disturbance.

结果显示，现阶段林分上层与下层群落几乎有共同的物种组成，若无大型干扰下，短期内物种组成不致产生明显改变。

A comparative study of the growth,physiological properties and chlorophyll fluorescence parameters of the exotic species Oxalis corymbosa and the native species O.

分别采用单一与混合种植方式和不同梯度的水分胁迫处理，对外来种铜锤草和本地种酢浆草的生长、生理指标、叶绿素荧光参数进行了比较研究。

Oxalis corymbosa to outside species as experimental material Oxalis corymbosa pot study alien species under drought stress in different enzyme superoxide dismutase and peroxidase activity of the physiological indices.

以外来物种铜锤草为实验材料，通过盆栽研究外来物种铜锤草在不同的干旱胁迫下超氧化物酶和过氧化物酶酶活性的生理指标变化。

The present study investigatated the effect on the diversification of weed community, including weed abundance, dominance, evenness, biomass, and mean height after mulching straw and intercropping white clover in the tea plantation from 2005 to 2006. The results were as follows: 16 families and 31 species were found in total. In April, the dominant species characterized with slow growth, lower biomass, and less than 30 cm height; in July those who grow faster with higher biomass and height became dominant; In September, these malignant communities reduced, while the oxalis and diffusa characterized with lower biomass and low height gradually increased. In the three seasons, the weed abundance, community diversity and evenness increased, and the dominance, the biomass and average height of weeds remarkably reduced after intercropping white clover and muching straw.

结果表明：茶园共有杂草16科31属31种，春季（4月）以生长速度较慢、生物量小、株高在30 cm以下的杂草为主，夏季（7月）以生长快、植株高和生物量大恶性杂草为主，秋季（9月）恶性杂草开始减少，酢浆草、白花蛇舌草等生物量小、株高矮的杂草逐渐增多；稻草覆盖处理茶园春、夏和秋季3个观测时期杂草物种丰富度、多样性、均匀度等指数均高于清耕对照，优势集中性指数低于清耕对照；间种白三叶草处理春、夏和秋季3个观测时期杂草总数量和生物量均显著低于清耕对照，夏、秋季杂草平均株高显著低于清耕对照；稻草覆盖和间种白三叶草处理春季茶芽重和产量显著高于清耕对照，鲜叶中游离氨基酸含量高于清耕对照，茶叶感官评审得分高于清耕对照处理。

In the past books will be any color was filamentous, strip parallel bars, while all have a directional structure of emerald known as "golden species", the author still feels that the "gold" and " Jessie,"to separate will be more aware, more conducive to species identification, distinction and appreciation; if both have an emerald green, yellow filaments or ribs, you can call it the" Golden kinds "- with a gold and emerald silk Tsui.

在过去的书籍中，将凡是颜色呈丝状，筋条状平行排列，同时具有定向结构的翡翠一律称之为"金丝种"，笔者认为还是将"金丝"和"翠丝"分开，会更加明白，更有利于品种的识别、区分和欣赏；如果在一块翡翠中同时具有绿色、黄色的细丝或筋条，则可称其为"金翠种"--具有金丝和翠丝的翡翠。

After the there are a large number of discovered that the number of individuals represented by more than 350, mainly in South Africa and East Africa are generally divided into slender species, robustus, Paranthropus species and A hair types.

后又有大量发现，代表的个体数在350个以上，主要分布在南非和东非，一般分为纤细种、粗壮种、鲍氏种和阿发种。

The characters could be defined as 12 combined types based on that on the sides of the head and pectoral fin. The secondary sexual characters are of diversity, and might vary among different species or within same species from different river system or even from the same rivers.

高原鳅的雄性第2性征具有多样性，不同种类的雄性第2性征可能存在差异，分布在不同或相同水系的同一种类的个体间雄性第2性征也可能发生变化。

Two-winged species have only the pectoral fin s enlarged; four-winged species have both the pectoral and the pelvic fin s enlarged.

有些种类具双翼而仅胸鳍较大，有些则有四翼，胸、腹鳍皆大。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。