四碱的

In order to study the dependence of several factors on the protein reduction of the soybean protein fibre, the factorial experiment design was used to optimize the pretreatment conditions.

以测得的坯布平均含氮量为基准，测定时间、温度、pH值及碱剂浓度四个因素对大豆蛋白纤维含氮量的影响，并通过正交试验确定最佳前处理工艺条件。

The performances of leadless and cadmiumless fluxing agents for overglaze colors were studied based on alkali-boron-silicon fluxing agent system.

用正交实验法研究了在碱-硼-硅系统基础熔剂中，外加助熔助色成分MgO、CaO、SrO、BaO四种碱土金属氧化物的添加量及R2O：RO、SrO：CaO、RO：SiO2对无铅无镉釉上彩熔剂性能的影响规律。

The company's products include: silane coupling agent KH-550, KH-560, KH-570, KH-602 and other models, perchlorethylene resin, high-chlorinated polyethylene resins, pigments, PCE, ethyl cellulose, poly vinyl perfluoro-C (F46 fluorine resin) silicone oil, dichloromethane, dichloroethane, cyclohexanone, protopine, ion exchange resin, epoxy resin, PF and other chemical raw materials, are manufacture of fine chemicals, adhesives, paint remover, paint, paint, antifreeze and other products of the basic raw materials.

本公司经营的产品有：硅烷偶联剂KH-550，KH-560，KH-570，KH-602等型号，过氯乙烯树脂、高氯化聚乙烯树脂、颜料、四氯乙烯、乙基纤维素，聚全氟丙乙烯树脂（F46氟树脂）硅油、二氯甲烷、二氯乙烷、环己酮、片碱、离子交换树脂、环氧树脂、PF等各种化工原料，是制造精细化工，粘合剂，脱漆剂，涂料，油漆，防冻液等产品的基本原料。

The content of aconitic alkaloids in Sini Decoction and its variety depend on both their solubility and chemical stability.

结论四逆汤中的乌头碱类生物碱的种类及含量由其溶解性和化学稳定性共同决定。

Namely four kind of azotic basic group's proportion in the same species during different individual is consistent, but during the different species has the difference again.

即四种含氮碱基的比例在同物种不同个体间是一致的，但再不同物种间则有差异。

Detailed geology- petrology-mineralogy study shows that late Triassic-early Jurassic granites can be divided into 4 groups: granodiorites, monzonitic-K syenogranites mainly, alkali feldspar-alkali granites and syenite, Middle Jurassic granites is composed of quartz diorites-granodiorites and monzonitic granites, the main rock type includes granodiorites and monzogranites; Early Cretaceous granites include alkali gabbro, alkali granites and granodiorites, and these rocks composed bimodal igneous rock group.

详细的地质-岩石矿物学研究表明，晚三叠-早侏罗世花岗岩可以划分成四种岩石组合，即花岗闪长岩组合、二长花岗岩—正长花岗岩组合、碱长花岗岩—碱性花岗岩组合和正长岩组合，其中以二长花岗岩—正长花岗岩组合为主；中侏罗世花岗岩由石英闪长岩-花岗闪长岩组合和二长花岗岩组合构成，岩石类型以花岗闪长岩和二长花岗岩为主；早白垩世出现了碱性辉长岩、碱性花岗岩和花岗闪长岩，构成双峰式火成岩组合。

Meanwhile, by either artificial chromosome doubling via colchicine treatment or spontaneous chromosome doubling via a union of unreduced gametes (2n) from T. turgidum-Ae.

同时，通过秋水仙碱对四倍体小麦-节节麦杂种进行染色体人工加倍或利用未减数配子自然加倍，我国科学家创制了一些新的人工合成小麦。

Axial group, substitution on the aromatic rings of SalenAlX, and co-catalyst all affect catalytic properties of these aluminum complexes.

设计合成了一系列四齿席夫碱铝配合物，它们可以溶解在超临界CO〓／环氧乙烷混合物中，是CO〓和环氧烷烃环加成反应的有效催化剂。

Chapter 3: The microscopic and macroscopic NLO properties of these condensations of aromatic amine with benzaldehyde derivatives were studied.

第三章：从微观和宏观两个方面研究了四类苯甲醛缩芳胺希夫碱衍生物系列二阶非线性光学材料的性质。

Chapter 2: Four kinds of condensations of aromatic amine with benzaldehyde derivatives were obtained by solid phase synthesis. Their structures were identified by element analysis and 1H NMR spectroscopy. Their SHG properties, fluorescent and thermochromic properties were also tested.

第二章：通过室温固相反应合成了四类苯甲醛缩芳胺希夫碱衍生物，用元素分析和核磁共振对其结构进行了确定，并测试了它们的非线性性质、荧光性质以及热致变色性质。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。