| 1. | What is expected concentration range 什么是预期的浓度范围? |
| 2. | Adsorption distribution coefficients increase with the increasing of temperature . the concentrations of redox reagents have light effects on adsorption within the studied concentration range 测定了硝酸溶液中三种价态的镎在硅胶上吸附的等温线和表观吸附热。 |
| 3. | Foxy - cal ( optional ) calibration option for foxy systems configured with temperature - compensation accessories ; users must specify the temperature and the concentration range for their applications 配置温度补偿附件的用于foxy系统的校准选项;使用者必须指明他们使用的温度和浓度范围。 |
| 4. | D . salina can grow in extreme environment such as in a variety of salt concentrations ranging from 0 . 05m to 5m , and the optimum salt concentration for growth is 2m to 3m 该藻的突出优点在于抗逆性极佳,可在0 . 05m - 5m的盐水中生长,最佳生长繁殖盐度为2 - 3m ,是目前已知最耐盐的真核生物。 |
| 5. | Foxy - cal probe calibration service available to buyers of foxy systems having temperature - compensation accessories ; users must specify the temperature and the concentration range of their applications 对购买带温度补偿附件的买家的探测器校准服务;使用者必须指明他们使用的温度和浓度范围。 |
| 6. | This is supported further by pharmacokinetic / pharmacodynamic ( pk / pd ) analyses which suggest , at most , a modest association of drug concentration with viral response in this concentration range 药动学/药效学的分析结果进一步证明了以上观点,其分析结果表明,在这个浓度范围内,药物浓度与病毒反应略有相关性。 |
| 7. | The fluorescence of the copolymer ( dmbn - vcz ) spectra show that the fluorescence spectra are in good agreement with that of dmbn monomer when the solution of copolymer ( dmbn - vcz ) is located in low concentration range ( < 10 - 3mg / ml ) 对非共轭聚合物( dmbn - vcz )的荧光光谱来说,在浓度很低时,它的激发,发射光谱和单体( dmbn )非常类似。 |
| 8. | Effects of diverse environmental factors on the growth rate ( od4oo ) and nitrogenase activity ( ara ) of the strain w12 hi nitrogen - free culture were investigated in our experiments . the results implied that the strain w12 could easily adapt to different cultural conditions : it could use various carbon sources ( especially glucose , sucrose , malic acid , mannitol ) , propagate quickly and fix nitrogen at a temperature range of 15 ? to 40 ? and at 25 - 35 ? for optimum , at a ph range of 4 to 8 . 5 , at a saline concentration range of 0 . 01 % to 1 . 5 % ; low nlv " concentration had little effect on its nitrogenase activity . ara could also be detected when it grow in the culture media with 5mmol / l ntv " W12菌株对环境因子的适应性研究:无氮培养条件下,测定温度、碳源、酸碱度、渗透压对w12生长及固氮能力的影响,结果表明,在15 - 40下均能生长并表达固氮酶活性,其最适生长及固氮的温度为25 - 35 ;能利用葡萄糖、蔗糖、苹果酸、甘露醇等多种碳源生长并固氮,当培养基中同时存在蔗糖和苹果酸时,细菌生长和固氮活性最强;在偏酸和偏碱的条件下( ph4 . 5 - 8 . 5 )均能保持较强的生长势和较高的固氮酶活性,并能通过调节自身代谢平衡并适应环境的酸、碱性变化,使培养液趋于中性:能耐受较高的渗透压,培养液中卜、 5 naci浓度对其生长和固氮酶活性影响不大,当naci浓度升至2时,菌株的生长势及固氮酶活性才有所下降:低浓度的铰对其固氮酶活性影响不大,在0 |
| 9. | In the volume change study , we found appropriate temperature is helpful for shrinkage control , and different lpas have different shrinkage control effects due to their dipole moment , tg , miscibility with upr and morphology after blending . there existed an optimal concentration range of poly ( vinyl acetate ) based lpas for shrinkage control . lpa was effective for shrinkage compensation in this range , on the other hand , lpa only acted as filler and the low profile effect vanished out of this range , however , for polystyrene based lpa , the more concentration the better shrinkage control 在膨胀研究中,发现适当的温度条件更有利于upr达到好的收缩控制效果;不同类型的lpa随着偶极矩、玻璃化温度、与upr的相容性、与upr的混合形态的不同,表现出不同的收缩控制效果;聚醋酸乙烯酯类的lpa - a存在一个最佳收缩控制的浓度范围,在这个范围之内, lpa起到补偿收缩的作用;而在这个范围之外, lpa的作用仅相当于填料,不能起到收缩控制。 |
| 10. | Calibration graph obtained by the modified procedure for ddmbac showed good linearity and its correlation coefficient was above 0 . 999 . the coefficients of variation and average recovery of added ddmbac were up to the mustard . the linear concentration ranges for batch determination of ddmbac were 0 . 06 ~ 3 . 33mg / l 利用改进后的方法对ddmbac的测定建立了质量控制体系,其标准曲线的相关系数大于0 . 999 ,线性良好,精密度和准确度均符合检测要求,线性范围为0 . 06 ~ 3 . 33mg / l 。 |