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In order to solve those problems,this paper presents a signal conditioning method with the averaged value of the first harmonic and proposes an intermitted exciting mode.

为了解决这些问题,本文提出了基波平均值的信号调理方法和间歇激磁方法,检定结果表明了该种方法的有效性。

In this paper,the test results of a few high-yield irrigation models for rice planting in black grass soil of cold region are presented,they show that the optimum irrigation model is the dry-wet intermitted irrigation method.

对寒地草甸黑土稻作的几种高产灌溉方式进行了试验研究,结果表明:干湿交替不建水层的间歇过水灌溉方式为最佳。

Based on the experimental data from Guilin Irrigation Experiment Station in Guangxi Autonomous Region,the relation of rainfall utilization and surface runoff in paddy fields under different rainfall frequency and different irrigation regimes is studied;i.e.combining shallow water depth with wetting and drying,intermitted submerged irrigation and traditional flooding irrigation.

以广西桂林试验中心站多年实测降雨资料为依据,研究不同降雨频率下稻田降雨利用率及水稻不同生育阶段的径流关系,以期为减少农业面污染的水肥管理提供理论依据和实践指导。1材料与方法桂林试验站多年来采用传统灌溉、间歇灌溉和&薄、浅、湿、晒&灌溉方式进行早稻和晚稻田间试验。

Through a self-designed lightproof intermittent reactor, homogenous oxidation kinetics of sodium sulfite was studied under uncatalyzed, catalyzed and inhibited conditions, respectively.

本文在均相条件下,通过自行设计的避光间歇式反应器,对亚硫酸钠非催化氧化、催化氧化和抑制氧化的本征反应动力学进行了实验研究。

The methanolysis of soybean oil and waster cooking oil bylipase-catalysis were not significant different, which showed that lipase was an effectivecatalyst on transesterification of oils having high concentration of free fatty acids.

其次,对副产物甘油的生物利用进行了研究,分别考察了在厌氧和微氧条件下,间歇发酵和批式流加发酵中工业级和试剂级原料对菌体生长及产物合成的影响。

The molding principle of microcellular plastics used in Civil Aviation was summarized.

叙述了民航用微孔塑料成型的原理,并介绍了间歇成型、注射成型以及连续挤出成型的制备方法。

A new heuristic solution algorithm is presented using an improved genetic algorithm. In the improved genetic algorithm, nondifferentiable exact penalty functions are used to transform a constrained optimization problem into a single unconstrained optimization problem, and hybrid crossovers and intermittent are applied to increase the search capability.

设计了基于改进遗传算法的启发式求解算法,该算法借助不可微精确罚函数将约束问题转化为单个无约束问题来解决,采用混合杂交和间歇变异提高算法的搜索能力。

In a duodenal ulcer, a long post parricidal interval of two to three hours offend exists before pain is apparent and it may then occur immediately before next meal.

十二指肠溃疡患者的疼痛症状,则往往经过餐后两到三小时的较长间歇期,才于下餐饭前出现发作。

Then with V∶V=11 9∶1 0,and by bubbling of air at 65-70 ℃ for 5-8 h,pyruvaldehyde was produced in 59 6% yield.

丙酮醛的总收率达 37 8%。n∶n∶n(1,2 丙二醇)=1 0∶4 0∶(1 5~ 2 5 ),以水为溶剂,在 6 0~ 70℃间歇通入氮气 1 5h ,边加原料边蒸馏,制得产率为5 0 %的丙酮醛。

The paper studied the improved process for preparing phosphorus sulfochloride, where high-effective liquid catalyst was employed, and investigated the catalytic activity and service life of the novel catalyst. The optimum process conditions of batch and semi-continous operation were obtained by single factor experiments and modified simplex experiments.

本论文研究了采用高效液相催化剂制备三氯硫磷的新工艺,对催化剂寿命和性能进行了考察,利用单因子实验和改进单纯形实验找到了间歇操作和半连续操作的最佳工艺条件。

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