等浓度

The key factors affecting the polymer intrinsic viscosity were found to be monomer recrystallization times,stannous octoate concentration and polymerization time.

单体重结晶次数、辛酸亚锡浓度、聚合时间等条件均是影响聚合物特性粘数的重要因素。

Three kinds of hydrophytes, Veliveria zizanioides Nash, Eichhornia crassipes, and Oenanthe javanica DC. were used to investigate enrichment ability of nitrogen and phosphor at the different TN levels with TP constant. It revealed the absorption ability of aquatic plants and purification ability of aquatic macrophytes-rhizosphere microorganisms system respectively in aquatic macrophytes-microorganism system for water purification.

研究了不同TN浓度下香根草、水葫芦、水芹等水生植物－微生物系统富集N、P的能力，揭示了水生植物－微生物系统中水生植物的吸收作用和根际微生物系统对净化水质的作用，对水生植物根际微生物系统相应微生物的数量做了定量的统计。

The level of β-tp was in direct proportional to the proliferation of cell in the oligodendroglioma cell lines (SHG-44, U-251, BT-325), but not in the non-oligodendroglioma cell lines (oophroma, prostate-carcinoma and neuro-oocyte).

但在非胶质瘤细胞株，如卵巢癌细胞，神经母细胞瘤细胞及前列腺癌细胞株等，β-tp的浓度与细胞增殖的趋势相反。

Results showed that, pyrolin had obvious action on two species of fungi, and the antifungal effect was positively correlative with concentration. The EC50 was 0.4076 mg/mL and 0.4626 mg/mL respectively after cultured 3 days. The main antifungal period was the fast growth period of fungi, and lead to it lag behind. Observation under SEM revealed that pyrolin caused a series of marked morphological and structural alterations of hyphal. These changes included mutual adhesion of mycelium, the hyphal was irregular in diameter, local denting, some of mycelium was broken, disruption of cell wall, outbreaking of inner cytoplast, and the empty cavity appeared. As a result, pyrolin restrained the growth of these fungi.

结果表明，鹿蹄草素对上述两种真菌均具有明显的抑制作用，抑菌效果与浓度呈正相关，培养3d时的EC50分别为0.4076、0.4626 mg/mL；抑菌时期主要是在真菌的快速生长期，使其快速生长期滞后；扫描电镜显示，鹿蹄草素作用下菌体形态发生异常变化，表现为菌丝体之间相互粘连，菌丝粗细不均匀，细胞壁破裂，局部凹陷，部分菌丝断裂，大量内容物外溢，出现空腔等现象，从而发挥其抑菌作用。

The outcoming materials are affected by many factors, such as the initial KOH concentration, solvent, reaction temperature, reaction time et.al.

研究结果表明，KOH的浓度和溶剂是决定产物的关键因素，所制得的粉体具有结晶度高、分散性好、形状均一等特点。

After pretreatment,brass is overlain with PbS by chemical plating.The absorptivity of PbS coating is affected by temperature,reaction concentration,reaction time and so on.The optimized condition of preparating PbS coating was got.

首先，考察了反应温度、反应物浓度、加碱量和反应时间等对PbS涂层太阳吸收率α的影响，得到了制备PbS涂层的优化条件；然后，在PbS涂层上涂敷TiO2作为保护层，以延缓PbS涂层的氧化，对两种涂层表面进行了XPS和SEM分析。

The catalytic transformation pathway can change to decrease the yield of hydrogen and yield methyl-contained sulfides such as methyl mercaptan, dimethyl sulfide and dimethyl disulfide, but overlarge concentration of methanol would holdback the transformation of isobutyl mercaptan. The transformation of isobutyl mercaptan was favorable if the volume ratio of methanol and benzene was 0.2.The addition of methanol assume certain effect on the catalytic cracking of di-n-butyl sulfide in solvent benzene but without changing the cracking reaction mechanism of di-n-butyl sulfide.

甲醇也可以使异丁硫醇的催化转化路径发生改变降低硫化氢的产率，生成甲硫醇、甲硫醚及二甲基二硫化物等含甲基硫化物，但甲醇的浓度过高会抑制异丁硫醇的转化，在反应体系中当甲醇的体积占到溶剂苯体积的20%时对异丁硫醇的转化较为有利；甲醇的添加对丁硫醚在溶剂苯中的催化裂化有一定影响，但没有改变丁硫醚的裂解反应历程。

Results There are 89 cases patients with left ventricle pachynsis in 186 cases patients with chronic kidney failure,the incidence is 47.8%,the occurance of left ventricle pachynsis to chronic kidney failure present positive correlation with systolic pressure (P 0.01 ),positive correlation with age(P.05),n...

慢性肾衰竭患者左心室肥厚的发生与收缩压呈正相关(P 0 1 )，与年龄呈正相关(P 0 5 )，与血浆白蛋白浓度呈负相关(P 0 5 )，与血红蛋白呈负相关(P 0 5 )，与红细胞压积呈负相关(P 0 1 )。结论慢性肾衰竭并左心室肥厚与收缩压、年龄、血浆白蛋白、血红蛋白、红细胞压积等因素相关

By using paleosols, the history of ancient paleoclimate change might be reconstructed while variation of atmospheric pressure of oxygen and level of carbon dioxide concentration during preCambrian and postCambrian periods, as well as paleoecological, paleogeographic features and paleolandscape were rebuilt. However, several problems should be tackled, e.g.

形成于晚第三纪以前的古土壤可以重建全球范围的古气候变化历史，同时揭示前寒武纪时期古大气O2分压以及后寒武纪时期古大气CO2浓度水平的演化过程；古土壤具有空间和时间等多重信息，能反映流域或区域的古景观、古地貌、古水文特征。

Synthesis of di carbonate using bis carbonate and paracresol was a new approach and technology.

研究了三光气与邻甲酚反应合成碳酸邻甲酚酯的新方法，并对酚钠盐浓度、温度、三光气用量等因素的考察。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。