浓度

Cormel formation was induced by PP.vo, the critical concentration of its function was between 0.5 mg/L and l.0mg/L, 5.0mg/L was the best treatment for cormel formation .

PP_(333)可以诱导子球的形成，诱导子球形成的阈值浓度在0.5～1.0mg／L之间，最适浓度为5.0mg／L。

The result showed NaOH was the reasonable agent for changing pH value of cornhusk hydrolysate, and cornhusk hydrolysate could be preserved in the below conditions: pH value is pH4.0 and the sugar concentration of corn hydrolysate was from 80g/L to 160 g/L, multicomponent hydrolysate could be deposited within 48 h at the room temperature (20℃) or the low temperature (4℃) and must be preserved within 48~120 hours at the low temperature (4℃) from harmful fermentation by microorganism.

通过温度、pH、梯度总糖浓度以及调pH试剂等因素对玉米皮水解糖液存放过程中总糖浓度变化趋势的影响进行深入研究，实验结果表明：选取NaOH作为调pH试剂比较经济，且选择在80~160g/L、pH4.0条件下存放可较好保存糖液品质，确定出在0~48h范围内可选择低温(4℃)至室温(20℃)条件下存放，而48~120h范围内只能选择低温存放(4℃)，室温条件下较长存放时间的糖液易被环境微生物发酵利用掉，为玉米皮水解糖液的短期存放提供一定的帮助。

ConclusionSerum concentration of NO and plasma concentration of ET1 and the balance relationship between them corporately affect the formation and the extent of PH of congenital heart disease.

结论血清NO浓度和血浆ET1浓度及其之间的平衡关系共同影响PH的形成及其程度。

The presence of fish will not have influence on the concentration of CPs.

实验发现：24h换一次水，能充分保证CPs实验水的浓度恒定，鱼的存在并不影响实验水的浓度。

Especially, the cross correlation analysis was applied to estimate the influence of monthly rainfall days on PM10 monthly average concentration.

分析结果表明：厦门市PMl0浓度年内变化无明显的上升和下降的趋势，但有显著的周期性，分别为3、7和29天，气候因素对PM10浓度的变化有显著的影响。

Then a mixed dimmer intermediate is formed through the cross-reaction of OAP and AN cation radicals with their monomers in solution.

在研究不同浓度比的AN和OAP进行电化学共聚时发现，当溶液中OAP浓度增大时，对AN的聚合会产生抑制作用。

The main works of this paper are as follows:(1) The various methods for determining the cryolite ratio of electrolyte were summarized and compared. The phase constituents of aluminium electrolyte system were studied, the various cryolite ratio definitions for this reason were discussed.

本文研究和测定了工业铝生产中与电解质相关的几项重要的物理化学参数，包括铝电解质分子比的测定研究，氧化铝溶解性能的研究及测定，氧化铝浓度的测定及工业铝电解槽氧化铝浓度—槽电阻曲线的绘制，铝在电解质中溶解度的研究及测定。

The observational and calculated results are well matched. The calculated mean diameter, mean square-root diameter, mean cube -root diameter and liquid water content are all well matched with the observational results; In the paper two examples have been analyzed by using the seeding region data and the possible affecting region data in leeward region. It is found that F-100, 2dc, and 2dp's particle concentrations increase in leeward region, but rising extent is different, which is likely to be due to difference of seeding effect time.

拟合值和观测值吻合的较好，计算出的平均直径、均方根直径、均立方根直径和粒子浓度与观测值也比较吻合；本文对两组个例的催化影响区域及可能采集到相应值的下风方区域进行了分析，催化下风向影响区的F-100、2DC、2DP的粒子浓度比背景值都有所增加，但是增加的幅度不同，应该是催化响应时间的原因。

So worked resistance decrease of grafted cucumber.Grafted cucumber and squash root exudates have the inhibitory effect of germination of cucumber, elongation of root and hypocotyls, and have the same effect on squash.

南瓜和嫁接黄瓜根系分泌物对黄瓜发芽率，胚根胚轴的伸长均具有明显的抑制作用，这种抑制效果与浓度呈正相关；对南瓜发芽率及其胚根胚轴伸长的抑制也达到显著水平，这种抑制效果与浓度同样呈正相关。

Development and the components of exudates and bleaching sap in the root of cucumber seedlings were examined to elucidate the response of the rhizosphere to CO2 enrichment treatments (one time in the morning and twice in the morning and afternoon).

为探讨温室蔬菜CO2施肥的根际效应，以黄瓜幼苗为试材，研究了CO2施肥（上午施肥/上、下午施肥；施肥浓度/对照浓度(950±50)/(350±50)μmol/mol CO2）对根系生长及分泌物和伤流液组成的影响。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐