查询词典 root system

Associated it we define a root system. In a suitable condition we define a Lie algebra to realize this root system, namely, using an Euler cocycle given by intersection matrix, we define an infinitely dimensional vector space with the Lie operation becomes a Lie algebra.

在适当的条件之下，我们给出了该根系的一个李代数实现，即利用该相交矩阵确定的一个欧拉cocycle和根系，我们定义了一个无限维向量空间和李运算，并且证明了这个无限维向量空间在该李运算之下构成一个李代数。

The results show that soil-root complex still comply with Coulomb's law; root-soil complex cohesion and the incremen in the unit soil content directly proportional relationship, and the root system anchoring role formula is established based on this; Different distribution methods in root has different impact on the shear strength of composite material.

最后，通过有限元分析表明，草根的作用，能够降低浅层土体中的应力水平，即草根能改变浅层土体的应力应变状态；草根增加了浅层土体的粘聚力，对边坡的稳定是有利的。

The absorption of root system was the main sources of nitrogen in the plant.The effects of matrix ventilation on the abaorption,transportion and metabolism of nitrogen in the root system of cucmber were discussed deeply.The results showed that contents of ammonium,nitrate,free amino acids and soluble protein in cucumber roots were higher in G1 treatment.Contents of ammonium,nitrate and free amino acids in cucumber roots were the trend of the dropping after the first rising in F1 treatment,but contents of soluble protein was lower11.03%than that of the control.

根系吸收是植物体内氮素的主要来源，本研究深入探讨了基质通气状况对黄瓜根系氮素吸收、运输和氮代谢的影响，结果表明G1通气处理根系的铵盐、硝酸盐、游离氨基酸和可溶性蛋白含量均较高；非通气处理(F1处理)根系内铵盐、硝酸盐和游离氨基酸含量呈先升高后降低的趋势，而可溶性蛋白含量始终较低，比对照降低11.03%。G1处理根系硝酸还原酶、亚硝酸还原酶、谷草转氨酶、谷丙转氨酶、谷氨酰胺合成酶活性均较高；而F1处理的酶活性在处理末期显著降低，其中谷氨酰胺合成酶活性比对照降低33.33%。

The study was focused on the amount of available water in soil, hydraulic conductivity in soil-root system from different root zones, sap flow from root to stem, compensatory effect of root water uptake, the fruit growth and physiological attibutes, evaporation and transipiration, and plant water use efficiency. Experiment plants involved apple tree, grape, peach, etc. Fruit trees were irrigated in both half root zones or water was continuously supplied to the one-half and the other half kept dry(fixed partial rootzone irrigation, F), or water was alternatively supplied to two halves (alternative partial rootzone irrigation, A).

项目通过水平或垂直方向交替滴灌、固定局部滴灌及均匀灌溉方式，研究根区土壤湿润方式改变对果树根系微生态系统水分有效性、水分传导、根系吸水补偿效应、根茎液流、生长生理状况、蒸发蒸腾及水分利用效率的影响。

Result The growth of the subterranean organs of Curcuma longa can be divided into five phases:root system growth,rhizome formation,rhizome intumescence-root tuber formation,rhizome dry matter accumulation-root tuber intumescence and root tuber dry matter accumulation.

结果：将黄丝郁金的地下器官形态发育划分为五个时期，即根系发育期、根茎形成期、根茎膨大－块根形成期、根茎干物质积累－块根膨大期、块根干物质积累期。

Influence of plant species coexisting on AMF colonization in root system under field conditions The field experiment showed that the influence of species coexisting community on the AMF colonization in these plant root system significantly depended upon the plant species character.

泡囊数主要说明AMF在宿主根系的定殖程度，泡囊数表现出与菌根侵染率相似的变化规律，也是各物种共存组合与单个物种相比变化不大，但泡囊数在铅污染土壤中明显增加，这可能是铅污染刺激了这些草的菌根膨大。

Afforestation costs for seedlings with mudding root and bare-root seedlings are approximately equivalent, so do no-woven-cloth container seedlings with balanced root system and plastic container seedlings, and their costs decrease by 30.5%~32.1% compared with that of bare-root seedlings.

结果表明：应用无纺布容器苗、塑料袋容器苗、蘸泥浆苗造林的8个树种的平均成活率较裸根苗造林提高151.9%~522.8%，栽植当年平均新梢生长量提高325.0%~1475.0%；应用平衡根系无纺布容器苗与塑料袋容器苗的造林成本相当，比裸根苗降低30.5%~32.1%，蘸泥浆苗与裸根苗的造林成本基本相当。

The results show that soil-root complex still comply with Coulombs law; root-soil complex cohesion and the incremen in the unit soil content directly proportional relationship, and the root system anchoring role formula is established based on this; Different distribution methods in root has different impact on the shear strength of composite material.

结果表明，根土复合体仍然符合库伦定律；根土复合体粘聚力的增量与单位土体中根系的含量成正比关系，在此基础上建立了根系锚固作用公式；根系不同的分布方式对根土复合体的抗剪强度有不同影响。

The main root axis from which smaller root branches arise; a root system with a main root axis and smaller branches, as in most dicots.

具有侧根的主根轴；由主根和侧根组成的根系，见于大多数双子叶植物。

The main root axis from which smaller root branches arise; a root system with a main root axis and smaller branches, as in most dicots.

直根 Taproot 具有侧根的主根轴；由主根和侧根组成的根系，见于大多数双子叶植物。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。