查询词典 ditch fern

Bracken fern-green and purple fern are usually called the Green fern fern sheep, cattle known as the Purple fern fern.

蕨菜分绿蕨和紫蕨两种，通常把绿蕨叫做羊蕨，把紫蕨称为牛蕨。

This study will be mainly through potted lotus leaf fern Adiantum seedlings and wire division to transplant fern, and then through the different light intensity and moisture content of the orthogonal to quantitative research lotus leaf fern Adiantum optimum growing conditions, and through Transplant Research Laboratory test pilot of the two species, competition between species to find lotus leaf fern Adiantum way to protect endangered mechanism and provide a theoretical basis.

本研究主要通过盆栽将荷叶铁线蕨的幼苗与铁线蕨进行分株移植，再通过在不同光照强度和水分含量的正交实验来定量研究荷叶铁线蕨最适生长条件，并且通过实验室移栽试试验探究两物种之的种内，种间竞争关系为寻找荷叶铁线蕨濒危机理和保护途径提供理论依据。

In Alma it states,"Yea, he had been strengthening the armies of the Nephites, and erecting small forts, or places of resort: throwing up banks of earth round about to enclose his armies…the Nephites were taught…never to raise the sword except it were against an enemy… they had cast up dirtround to shield them from the arrows…the chief captains of the Lamanites were astonished exceedingly, because of the wisdom of the Nephites in preparing their places of security…they knew not that Moroni had fortified, or had built forts of security in all the land roundabout …the Lamanites could not get into their forts of security…because of the highness of the bank which had been thrown up, and the depth of the ditch which had been dug round about…they began to dig down their banks of earth…that they might have an equalchance to fight…instead of filling up their ditches by pulling down banks of earth, they were filled up in a measure with their dead…And caused them to erect fortifications that they should commence laboring in digging a ditch round about the land…And he caused that they should build a breastwork of timbers upon the inner bank of the ditch: and they did cast up dirt out of the ditch against the breastwork of timbers".

在阿尔玛书说：『他加强了尼腓人的军队，建造了小型堡垒，或凭藉处所；在周围筑起了堤岸来拱卫他的军队……尼腓人已被教导……除非抵抗敌人，决不举起剑来……他们在周围堆上了污泥来防避拉曼人的箭……这时拉曼人的总队长们非常的吃惊，由於尼腓人在准备他们的安全处所上所表现的智慧……因为他们不知摩罗乃已在周围各地的每一个城巿建筑了防御工事，或防御堡垒……拉曼人除了经由入囗处外，无法进入他们的防御堡垒，因为那土岸已堆得很高，那周围的壕沟已掘得很深……他们就开始去掘他们的土岸，使他们也能得到一条通往他们军队的小路，使他们能有一个均等的作战机会……非但没有推倒土岸来垫没他们的壕沟，反而将他们死者和伤者的身体垫进了不少……并吩咐他们建筑防御工事……他吩咐他们在濠沟的内堤上建造一道木头的胸墙；他们从濠沟中挖出污泥来，靠著木头胸墙堆起来

The traditional Passveer single ditch and Carrousel ditch are not good at removable N and P, but in the front of anaerobic pond is intercalated, and anoxic area is intercalated in, Carrousel Oxide Ditch becomes a mendable Carrousel 2000 Oxidation Ditch, so it possesses removal removal nitrogen and phosphorus by biology function.

传统的Passveer单沟型和Carrousel型氧化沟脱氮除磷功能差，但是在Carrousel氧化沟前增设厌氧池，在沟体内增设缺氧区，形成改良型Carrousel 2000氧化沟，便具备生物脱氮除磷功能。

Regardless of the kind of competition, lotus leaf fern Adiantum in 5400 lux light intensity, 60 percent of soil moisture conditions, the total biomass of the largest, which also shows a lotus leaf fern Adiantum more to live in this habitat, but In such a habitat, the species of lotus leaf fern Adiantum competition among the lowest relative intensity, but these habitats and less dispersed.

无论有无种内竞争，荷叶铁线蕨在5400lux光照强度，60%土壤含水量的环境条件下，总生物量最大，这也说明了荷叶铁线蕨更适应生活在这个生境中，但是在这种生境，荷叶铁线蕨的种间竞争相对作用强度最低，而且这些生境少并分散。

Through research, give the following conclusion: there is no competition, lotus leaf fern and wire fern Adiantum as drought intensifies, the total biomass of a decreasing trend when the water content at the same time, with the intensity of Increase in total biomass showed an increasing trend, LAR general with the increase in soil moisture and lower, with light to reduce the increase, when in a kind of competition within and between species, the lotus leaf fern Adiantum the total biomass is still followed Such laws, but because the resources snatch the total biomass decreased significantly.

通过研究，得到以下结论：在不存在竞争的情况下，荷叶铁线蕨与铁线蕨随着干旱的加剧，总生物量呈降低的趋势；当处于同一水分含量时，随着光强的增加，总生物量呈增加的趋势，LAR一般随土壤含水量的增加而降低，随光强的增加而降低，当处于种内和种间竞争时候，荷叶铁线蕨的总生物量仍遵循这种规律，但是因为资源的抢夺造成总生物量明显降低。

Ferns are found in the valleys in a great variety, the most striking being the Gleichenia Dichotyma,, a hardy fern which covers the hills up to a altitude of 1,600 feet. the following kinds grow only in damp shady spots: Aspidium or shield fern; and Selaginella or Moss fern.

还有，蕨类植物在山谷里随处可见，最有名的是里白木（一种耐寒的蕨类植物，生长在海拔1600英尺的山上），但是绵马根和卷柏这两种蕨类植物只生长在阴暗潮湿的地方。

According to the characteristics of soil solidifier, soil of Ningxia Tanglai Ditch and Hanyan Ditch, sand of Zhengsha Ditch, and coarse sand of zhenbeipu were chosen to have been tested.

根据固化剂特点，选择宁夏唐徕渠、汉延渠的渠床土及征沙渠风积沙、镇北堡粗沙，进行强度试验。

In fact Cyatheaceae alias "Alsophila spinulosa,""tree fern", is a fern Cyatheaceae door for the dinosaurs left over from the period of rare and endangered plants, a "living fossil" known.

喜酸生土壤，常生长在山沟的潮湿坡地和溪边阳光充足的地方，常数十株或成百株构成优势群落。孢子体生长缓慢，生殖周期较长。

In this paper the authors reviewed the characteristics in the different phases in the life cycle of ferns. Special attentions were given to the effect of light, plant growth regulators, water and temperature on the fern gametophyte development, and the effect of antheridiogen, light, calcium and other plant growth regulator on the formation and differentiation of fern sex organ.

作者概述了蕨类植物生活周期中不同发育阶段的特点，并着重介绍了光、植物生长调节物质、水和温度等因素对蕨类植物配子体发育的影响以及成精子囊素、光、钙离子和其它植物生长调节物质在性器官形成和分化过程中的作用。

A historical region of southwest France between the Pyrenees and the Garonne River. The duchy of Aquitaine was joined with France after the marriage of Eleanor of Aquitaine to King Louis VII in1137, but its possession was disputed after her subsequent marriage to Henry II of England.

阿基坦法国西南部一个历史地区，位于比利牛斯山和加隆河之间，在1137年阿基坦的埃莉诺与国王路易斯七世结婚之后阿基坦公国加入法国，但当她再嫁英国亨利二世后，其归属权便受到争议

There are moments when I look at the smiling , happy faces of my expectant staff and wonder how they will cope when confronted by an outraged housemaster along with an unrepentant and recalcitrant bleached blond teenager in 18 years ' time .

有时候，我看着那些满怀期待的员工微笑，幸福的脸，想着当他们遇到一位愤怒的宿舍管理员和一位不知悔改，叛逆，而且将头发染成白色的18岁少年时，他们会如何处理。