查询词典 limiting factor

The results showed that the diurnal changes of photosynthesis of S. chinensis in tile overstory took on "double-peak" curve with remarkable midday depression. The midday depression was mainly due to non-stomata1 limitations. On the contrary, the diurnal changes of photosynthesis of S. chinensis in the understory took on "one-peak" curve with low Pn. The maximal Pn was only half of that of S. chinensis in the overstory. The correlation analysis showed that the limiting factor for this low Pn might be light intensity (p=0.001). Compared with its accompanying plants, S. chinensis was in a disadvantaged status in the community with low photosynthetic capacity, water use efficiency, and the ratio of photosynthetic rate to respiration rate.

结果表明：夏蜡梅冠层的光合速率日进程呈"双峰"曲线，有明显的"午休"现象，经分析其"午休"的原因主要是由非气孔因素引起的；林下夏蜡梅则表现为"单峰"曲线，净光合速率较低，最大净光合速率不及冠层的1/2，相关分析结果表明其最重要的影响因子是光合有效辐射(p=0.001)；与其它伴生植物相比，夏蜡梅的日均光合速率、最大光合速率、水分利用效率和光合速率／呼吸速率都明显偏低，在群落竞争中处于不利地位。

They just convert energy from one form to another, so the chief performance-limiting factor is human power.

他们只是转换成能量从一种形式向另一种，所以首席性能限制的因素是人的权力。

If Arthur is a direct descendant of Septimus, his mother or grandmother's age is more of a limiting factor for childbirth than his father.

如果亚瑟是西帕提姆斯的直系后代，对于生孩子来说，他的母亲或者祖母的年龄是一个更为重要的控制因素。

The experiments with water as only limiting factor was designed to study the dynamics of size inequality in spring wheat ( Triticum aestivum L.)populations and its theoretical basis.Of the three densitywheat populations,the skew of weight distribution of wheat plants increase with time,and the increase rate is the highest in high density population.

在黄土高原半干旱生态条件下设置了低、中、高3个密度梯度的以水为限制因子的实验，各密度种群个体重量分布偏倚度随时间的延续而增大，增大的幅度随密度增高而上升。

Exploratory study was made on the Guanting reservoir influent treatment by using two-stage BAF at extreme low temperature.The results show that the removal of organics and ammonia nitrogen is seriously inhibited due to low temperature,and the conversion of nitrite into nitrate is no longer a limiting factor of complete nitrification.One possible hypothesis is that the activity of nitrobacter is hi gher than that of nitrosomonas at extreme low temperature.

摘 要：两级曝气生物滤池在极低温度下(1℃以下)处理官厅水库入库水的探索性研究试验结果表明，有机物和氨氮的去除受到了低温的严重抑制，亚硝酸盐转化成硝酸盐不再是完全硝化反应的限制步骤，这可能是在极低温度条件下硝酸菌的活性高于亚硝酸菌活性的缘故。

In the case of the Alienware mALX, weget aquite simply highequipment and graphic performances, but Turion 64 seems to be the principal limiting factor .

在这样的alienwaremalx，我们得到一个很简单的设备，高级图形和表演，但蘖64似乎是一个主要的制约因素。

The new duration is the limiting factor for slower weapons (e.g. Arcanite Reaper will typically get one less swing), while dual wielding and faster weapons will make better use of all of the charges over the duration of the ability.

新的持续时间限制了低速武器的实用性(AR在激怒时间中的挥动次数会更少)，装备副手武器和快速武器才能更好发挥此天赋的效果

In the Cryptocarya community, the reason for Cryptocarya concinna having high relative frequency and relative abundance is probably not it has wider range of resistance to soil variables but the range of its resistance has much wider spread in broad-leaf forest habitat, or it may just has a wider range of resistance to the limiting factor.

在厚壳桂群落，黄果厚壳桂之所以具有较高分布频度与多度，并非它对所有土壤因子具有较宽的容忍性，而可能是它能容忍的范围在阔叶林生境有较广的分布，或它仅对极限因子的容忍有较广的范围。

The litterfall P use efficiency was the highest and increased with increasing density, implying that P could be a limiting factor for the growth and regeneration of F. denudate.

缺苞箭竹P的养分利用效率随密度的增大而增高，表明P可能是缺苞箭竹生长更新的限制因子。

Analysis result indicated that the exceptional-high concentrations of Mn was found to be the limiting factor for plant growth. The concentrations of Mn, Pb, and Cd in the ten plants and Mn-enrichmentalabilities of the ten plants were analyzed in this paper.Poa pratensts, Gnaphalinm affine, Pteris viltata L., and Phytolacca esculenta Van Houtte were proved to have good metal-enrichmental an...

结果表明，早熟禾、鼠麴草、蕨、和商陆对Mn有较强富集能力，同时也是Mn的耐性植物；早熟禾、鼠麴草以及蕨对Pb的吸收和富集能力较强；小飞蓬、早熟禾和麴草对Cd的富集能力较强；但是各种植物对这 3种重金属的富集能力均未达到超富集植物的要求，进一步的改良栽培实验仍在研究中

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。