测定时间

The color fading reation on potassium bromate with Victoria green stand G by the catalysis of nitrite in hydrochloric acid medium was studied.

采用流动注射技术与催化光度法相结合，研究了亚硝酸根催化溴酸钾氧化维多利亚绿G的高灵敏度褪色反应，用自制的微机化流动注射分析仪能准确控制时间，优化了实验条件，建立了测定痕量亚硝酸根的流动注射催化光度方法。

With different migration time, the migration quantities of chlorobenzene and phenol from four simulants were measured using GC in order to provide many experimental data for analyzing migration model.

用气相色谱分析测定不同时间下4种食品模拟液中氯苯和苯酚的迁移量，为迁移模型分析提供一定的实验数据。

Methods After injecting different doses of cephalosporins(100, 200, 300, 400μg) into vitreous body of rabbits, we studied the active change of retinal enzymes at different time and observed the histological and ultrastuctural changes of retinae.

方法以不同浓度的先锋霉素Ⅵ（100，200，250，300，400μg）行兔眼玻璃体腔内注射，用酶组织化学染色法测定注射后不同时间（1，3，7d）视网膜琥珀酸脱氢酶和乳酸脱氢酶活性的变化，并观察对视网膜组织结构及超微结构的影响。

These two methods not only can determine precisely induction frequency of λ prophage, but also are easy to manipulate ,and they can save efforts and apparatus, they are also easy to repeat.

这两种方法不仅能准确测定噬菌体紫外诱导频率，而且操作简便，节省时间和用具，重复性好。

Determination of depth of granitic plutons was helpful for understanding of uplift of terranes and deep tectonism.

同时，构造地质学和大地构造学自身的研究也将不断拓宽研究领域①，如：1不断拓宽研究的时空尺度，深入了解地球早期构造作用和大陆地壳深部构造作用；2精确确定变形特征，特别是流变学特征，估算应变强度和流变学参数；3精细测定变形的时代，特别是早期变形的时间；4深入分析构造发生的动力源问题。

The toxicity of the crude toxin to the banana plantlets changed with treated time and dose.

根据毒素对蕉苗的毒性测定结果，建立了蕉苗受毒素作用的&时间-剂量-受害程度&模型。

A HPLC method for determination of sorbic acid,benzoic acid and sodium saccharin in dairy drink was studied.The comparison of five methods of precipitating protein showed that the solution of potassium ferrocyanide and zinc sulfate as protein's precipitant was appropriate.

探讨含乳饮料中山梨酸、苯甲酸、糖精钠的HPLC含量测定方法，在比较5种沉淀样品中蛋白质的方法后，确定以亚铁氰化钾与硫酸锌溶液为沉淀剂，采用C18反相柱，以甲醇：乙酸铵溶液(0.02 mol/L)=15∶85为流动相，紫外230 nm检测，结合保留时间及二极管阵列检测器光谱分析信息定性。

Culm sheaths red-brown or purple-yellow, without milky-white or gray-white stripes

更下部的颖片具白色的毛，毛测定长于所用时间小穗 50

The uncertainty principle of signal is proved according to the uncertainty principle of quantum mechanics, and is further interpreted by quantum mechanics. The signal can be considered as a kind of the quasi quantum system with wave-particle dualism. Because of the wave-particle dualism of the signal, time and frequency can not be measured at the same time.

根据量子力学的测不准原理，采用力学量算符的方法得到了信号在时频分析时的测不准原理，并对该原理进行量子诠释，认为信号在某种意义下可以看作是一个存在波粒二重性的类量子系统，正是由于信号的波粒二重性导致无法同时准确地测定信号的时间和频率。

The content of protein and nucleic acid in winter wheat leaf in its different growth stages were measured after the treatments of different water in order to vertically and horizontally research the metabolism of protein and nucleic acid in leaf in the time and spatial level.

［目的］在冬小麦不同生长发育阶段测定不同水分处理的叶片蛋白质和核酸含量，对叶片蛋白质、核酸代谢从时间、空间上进行讨论。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了