查询词典 algebraic fraction

To study the effect and mechanism of fraction C isolated fromN Naja naja Actra Venomin inducing apoptosis of human leukemia cells.

目的：研究眼镜蛇蛇毒组分C诱导白血病细胞凋亡的作用及机制。

In order to reduce the cost for formulating lubricating oil, a small fraction of paraffinic base oil can be added into naphthenic base oil as far as the property of lubricating oil can meet the specification.

因此，为了减小润滑油的生产成本，可以在满足润滑油性能的基础上在所用的环烷基基础油中加入少量的石蜡基油。

A series of niobic tellurite glasses of 85TeO2-(15-x) Nb2O5-xB2O3-1﹪Er2O3 (TNB x=0,3,6,9,12,15,molar fraction) glasses were prepared.

制备了一系列碲铌酸盐玻璃85TeO2-(15-x)Nb2O5-xB2O3-1﹪Er2O3 (TNB x=0， 3， 6， 9， 12， 15)。

Depositing cells were incubated in high-sugar DMEM culture medium containing 15% fetal bovine serum, 100 U/mL penicillin, and 100 U/mL Streptomycin, then cells were seeded in a 25 T culture bottle after cell density was adjusted to 1×109 L-1, and incubated at 37 ℃, 0.05 volume fraction CO2 with saturated humidity. After 72 hours, the culture medium was replaced, and red blood cells and other nonadherent cells were removed. Cells began to passage at 70%-80% confluence.

实验方法：穿刺抽取15 mL脐带血，密度梯度法分离吸取分层界面的白色环形絮状物，其中富含单个核细胞，离心后沉积细胞用含15％胎牛血清、100 U/mL青霉素、100 U/mL链霉素的DMEM高糖培养基悬浮，调整细胞密度为1×109 L-1接种于25 T培养瓶内，放置在37 ℃、体积分数为0.05的CO2饱和湿度培养箱中培养，72 h后更换培养基，去除红细胞及其他未贴壁细胞，至70％~80％融合时传代。

More experimental data of condensation heat transfer coefficient, especially ones obtained at some determined pressure of mixtures and concentration of noncondensable gases, are required in order to make a data bank. Therefore, the experiment is arranged for steam-air condensing on the outside of a horizontal smooth tube, and 405 data have been obtained for the pressure of the bulk mixture covering 0.1～0.5bar and the mass fraction of air 0.3%～10.0%.

得到了一些重要结论，尤其是首次得到了&同样含量的空气对压力较高的混合气体冷凝换热的削弱作用较小&、&蒸汽侧冷凝换热系数近似与空气质量成分的对数成正比关系&、&空气含量的增加对蒸汽侧冷凝换热系数的影响随壁面过冷度增大而减小&及&管内冷却水流速取值范围的上、下限随管外蒸汽侧空气含量的增大而减小&等结论，并验证了在本文实验范围内&蒸汽侧冷凝换热系数与相同温度下纯净饱和蒸汽凝结换热系数的Nusselt理论预测结果的比率随壁面过冷度增大而减小&的数值分析结论〓。

Methods Fresh specimens taken from 56 patients with lung cancer and 36 patients with nonmalignant pulmonary lesions were measured for DNA index, Sphase fraction by using FACSCalibur 4200 flow cytometry.

应用流式细胞仪对56例肺癌新鲜组织及36例非癌性病变的肺新鲜组织的DNA含量和SPF进行测定，并结合临床病理资料分析其意义。

In general, sunflower was suited to phytoremediation of moderately Pb-contaminated soil by phytoextraction.The result mentioned above showed that the main reasons that nutrient and EDTA could impact on phytoremediation efficiency was these as below: firstly, the addition of soil amendments transform soil Pb from nonresidual fractions to residual fraction substantially. Secondly, the grown period of tissues in C4 plants was short, so the replacement of C4 plants with C3 plants may increase times and efficiency of remediation.

根据上述结果，不同营养水平和EDTA对铅污染土壤植物修复的机理及效率可以归纳为：N、P、K的添加能使土壤中的非残留态Pb向残留态转化，因此N、P、K的添加能够增加菠菜和苣荬菜体内的铅积累；与C3型植物菠菜、苣荬菜相比，C4型的植物马齿苋由于构件成熟期短，较为适合作短期内铅污染土壤修复工程；在植物修复过程中，低浓度EDTA的分次添加能够显著提高修复的效率，并且能够减小螯合剂增加产生的二次污染。

Algorithm of nonrespirable dust fraction suppression using an optical transducer of dust mass concentration.

基于平均质量的悬浮颗粒物的质量密度算法。光学学报， 2007， 27(9)： 1706～1710

Algorithm of nonrespirable dust fraction suppression using an optical transducer of dust mass concentration.

光学学报， 2007， 27(9)： 1706～1710 顾芳，杨娟，卞保民，贺安之，&粒子计数器测量悬浮颗粒物质量浓度的计算模型&，中国光学快报 6，

Coding and non-coding sequences are expected to have very different patterns of sequence changes because of the following characteristics of coding sequences: biased codon composition, higher conservation, absence of stop codons and frameshifts, higher fraction of synonymous than nonsynonymous substitutions, higher frequency of substitutions corresponding to changes of chemically similar amino acids, higher proportion of mutable contexts.

我们可以预期可转录的序列及不可转录的序列会有相当不同的序列改变特徵，因为可转录的序列有以下特色：偏颇的密码子组成，较高的保存度，有终止密码子和移码的出现，相较於异义取代有较高比例的同义取代，较高的频率出现化学结构相似的胺基酸取代，较高比例的可变之前后序列。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48