1) four-phase
四相
1.
A Design of Four-phase Plasma Discharge H.V.Power Supply
四相高压等离子放电电源研制
2.
In order to achieve good control effect in the research of special electronic power transformer(EPT),we employed Park transformation to implement the transfer from the double closed-loop decoupled control of three-phase to four-phase EPT s primary side.
在特种电子电力变压器的研究中,为了达到良好的控制效果,采用Park变换来实现三相变换到四相电子电力变压器高压侧的双闭环解耦控制。
2) quaternary phase shift
四相相移
5) square crystalloid
四方相
1.
The quality of the sol-gel system was enhanced,and the square crystalloid nanometer barium titanate powder was gained after being calcined at 700℃ by the improved c.
根据胶体的形成机理和条件,对目前的研究工艺进行优化,制备过程中不引入H+和NO3-,在提高胶体稳定性的基础上,于700℃左右煅烧获得了各向同性、粒径约20nm的四方相Ba-TiO3粉体,解决了普遍存在的BaTiO3粉体粒径细小与四方相的矛盾,煅烧温度也较常规方法明显降低。
2.
Square crystalloid nano-size barium titanate powders were prepared by an improved oxalate coprecipitation method,since the phase would go far away the square crystalloid when the powders size was reduced by traditional technics.
根据传统的草酸盐共沉淀法合成超细BaTiO3粉末易产生偏离四方相的特点,提出了一种改进的草酸盐共沉淀法制备BaTiO3粉体的方法。
6) tetragonal
[英][te'trægənəl] [美][tɛ'trægənḷ]
四方相
1.
Hydrothermal synthesis of tetragonal barium titanate from barium chloride and titanium tetrachloride;
水热合成高纯四方相钛酸钡纳米粉末研究
2.
Sintered sample which has different amount of monoclinic and tetragonal phase at room temperature is obtained at different sintering temperature.
通过化学组成和相含量设计,采用湿混法制备了MgO和Y2O3共同稳定ZrO2粉末,在不同的温度下烧结,获得了室温下单斜相和四方相含量不同的烧结样品,用X射线峰宽化法测定并计算了粒子尺寸。
3.
The pattern of XRD illustrated that the pure perovskite phase (tetragonal) had been obtained for all samples.
XRD分析结果表明所制备的样品都生成了纯的钙钛矿结构,并且都为四方相。
补充资料:四相
【四相】
(名数)表彰有为法之事体者有四:一生相,起事物也。二住相,安事物也。三异相,衰事物也。四灭相,坏事物也。有此四相者为有为法。无此四相者为无为法。俱舍论五曰:“颂曰:相,谓诸有为生住异灭性。论曰:由此四种是有为相,法若有此,应是有为。与此相违是无为法。此于诸法能起名生,能安名住,能衰为异,能坏为灭。”小乘有部谓离所相之法,则有能相之别体,成实及大乘,谓此四相唯为有为法变异之差别,非有所相与能相之别体。因之有部之四相,为实法,成实及大乘之四相为假法。
(名数)表彰有为法之事体者有四:一生相,起事物也。二住相,安事物也。三异相,衰事物也。四灭相,坏事物也。有此四相者为有为法。无此四相者为无为法。俱舍论五曰:“颂曰:相,谓诸有为生住异灭性。论曰:由此四种是有为相,法若有此,应是有为。与此相违是无为法。此于诸法能起名生,能安名住,能衰为异,能坏为灭。”小乘有部谓离所相之法,则有能相之别体,成实及大乘,谓此四相唯为有为法变异之差别,非有所相与能相之别体。因之有部之四相,为实法,成实及大乘之四相为假法。
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