1) 3-day-weighted food records
3d称量法
2) binormal 3D vectors
双法向3D矢量
3) weighing method
称量法
1.
The platinum was determined by (NH_4)_2PtCl_6 weighing method and the remains Pt in filtrate was determined by FAAS or ICP-AES to make compensation.
主体Pt以氯铂酸铵称量法及火焰原子吸收光谱(FAAS)法或电感耦合等离子发射光谱(ICP-AES)法测定滤液中残留Pt进行补差而测定。
2.
Taking the preparation of secondary gas reference material for CO_(2) in N_(2) as an example,approach preparation of secondary gas reference material is prepared by comparison method,and the analysis and calculation of uncertainty,in which reference material by weighing method.
以氮中二氧化碳二级气体标准物质的研制为例,探讨采用比较法研制二级气体标准物质及其不确定度的分析计算,其中标准物质的制备采用称量法配制,并对所研制的样品进行了均匀性、稳定性试验,结果表明,所研制的氮中二氧化碳气体的标准物质在一年的考察期内,其均匀性、稳定性、量值不确定度均达到国家二级标准物质要求,符合申报条件。
3.
Prepared the packaged gas standard material by using weighing method,fixed the value of the prepared gas standard material with the weighing result,and analyzed and calculated the indefinite degree of the fixed value.
采用称量法制备了瓶装的气体标准物质 ,用称量结果对所配制的气体标准物质定值 ,并对其定值不确定度进行分析计
4) symmetrical components method
对称分量法
1.
Application of the symmetrical components method in the polyphase asymmetrical AC systems
对称分量法在过载保护电路中的应用
2.
If only the fundamental is considered,the unbalanced voltages can be decomposed by the symmetrical components method into positive and negative sequence components,which are balanced and independent of each other.
若只考虑基波电动势,使用对称分量法可以将不平衡电压分解成对称的正序和负序2部分,而这2部分平衡且相互独立。
3.
The symmetrical components method was used to analyze the single-phase-to-ground faults.
首先采用对称分量法对这两种配电网的单相接地故障进行分析,并采用MATLAB进行了仿真。
5) Symmetrical component method
对称分量法
1.
A kind of intelligent unified protective system of HV asynchronyous motors which based on the symmetrical component method is mentioned.
针对目前高压电动机频繁烧毁及其保护中存在的问题,基于对称分量法理论,分析了高压异步电动机的故障特征。
2.
The paper introduced a kind of principle and realization of online accurate measuring for TA ratio of HV measuring based on symmetrical component method.
文章介绍了一种基于对称分量法的用户高计TA变比间接测量原理与实现方法。
3.
By using symmetrical component method,during transformer high side voltage phase-deficient operation of different wiring group, low side voltage reflects different situations.
用对称分量法来分析不同接线组别的变压器高压侧缺相运行时其低压侧电压反映的不同情况,并找出其规律,得出结论,为调度人员及时根据故障现象特征隔离故障点,调整运行方式,从而确保了地区电网供电的质量和可靠性。
6) symmetrical component
对称分量法
1.
Based on the symmetrical component principle,the measurement system can indirec.
该测试仪基于对称分量法的原理,通过测量电网单相经电阻接地时的二次零序电压UR02、流过接地电阻的电流IRE及电网单相直接接地时的二次零序电压即TV二次线电压U02,能够间接得到电网单相直接接地时的接地电流。
2.
The often happerung fault single phase earth short circuit of neutral point insulation elec-tre network with symmetrical component is dealt with.
用对称分量法对中性点绝缘电网最多的故障──单相对地短路进行了探讨，得出了复合序网络图，确定了故障点、电容、电源处各序电压、电流间的关系，充实、完善了这方面的研究内容。
3.
This paper analyzes the electrical characteristics of synchronous motors, with symmetrical component method, at the states of the symmetrical and asymmetrical faults.
本文用对称分量法分析了同步电动机对称故障和不对称故障时电气量的特征，利用同步电动机发生不同类型故障时，正序、负序、零序三个故障分量的特点和差别，提出了一个同步电动机的保护方案，尤其是在热过载保护和失磁失步保护方面提出了与传统保护不同的方法。
补充资料：称量方法
称量方法
method of weighing
到被称物体的质量。用这种方法称量时，衡器的固有误差(如天平的不等臂性等)、空气浮力修正零位漂移的不确定度等都会带人称量结果中。②精密称量法分为3种，即替代称量法、交换称量法和组合比较法。交换称t法又称高斯法，只适用于等臂天平的质量计量。替代称t法又称波尔达法，组合比较法又称连续替代法或门捷列夫法。它们除适用于天平的质量计量外，也适合在其他称量设备(特别是高准确度秤)上应用。精密称t法主要应用于质量量值传递工作。称量方法的选择取决于对被称物的准确度要求。(施昌彦)chengliang fongf。称l方法(meth记ofweighing)测定物量时，按类别叙述的一组操作的逻辑程序。通常直接称量法和精密称量法两类。①直接称量法又.例称量法，是对准确度无特殊要求的一种普通称』称量时只考虑衡器的零位，然后由衡器的示值直质为此丸褥
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条