使用BMI(身体质量指数)测量儿童的肥胖不应成为测量健康风险的准确指标,由于这两个组成部分(身高和体重)都是变量。
Using BMI to measure obesity in children should not be relied upon as an accurate indicator of risk to health as both components, height and weight, are variables.
除了身体形态作为一个指标,对健康的危害,有一个测量称为身体质量指数(BMI)表示,期待在比例身体,看看是否健康风险是可以预测的。
Besides body shape being an indicator of health risk, there is a measurement called the body Mass Index (BMI) that looks at the proportions of the body to see if health risks can be predicted.
系统效率是抽油机装置的主要评价指标,测量参数的质量对系统效率测算结果准确程度的影响很大。
The system efficiency is a primary index for evaluating pumping system. The quality of measured parameters has a great influence on the efficiency of pumping system.
测量不确定度是测量系统最基本也是最重要的特性指标,是测量质量的重要标志。
The uncertainty in measurement is the most fundamental and important characteristic property index in the system of measurement, and it's also an important mass measurement sign.
由于喷雾场中液滴的大小和数量是评价雾化质量及雾化特性的重要指标,燃油喷雾液滴的测量具有重要的意义。
Because the size and the quantity of drops is the important index to appraise the spray quality and the spray characteristic, the measurement of the fuel spray drops has the important meaning.
不确定度是测量质量的重要指标。
The uncertainty is an important index for measurement quality.
通过分析叶片型面测量及误差分析的现状,提出了新的叶片型面质量评估指标。
The new blade surface quality evaluating indexes are put forward through the analysis of present situation of measurement on the surface tolerance of blade.
依据评价指标体系、评价标准和评分表,就可以对就业质量进行规范的评价测量。
The employment quality can be evaluated based on the indices, standard and score table.
该装置可完成国标规定的电能质量指标的测量,并有数据显示、存储、通信和简单录波等功能。
This device can accomplish the measure of power quality index stipulated by national standard and has some other functions such as data showing, data saving, communicating, simple wave recording etc.
馏程是石油产品一种重要的质量指标,它的测量在石油产品的炼制和使用过程中都具有十分重要的意义。
The distillation range is a kind of chief quality index for petroleum products. Measurement of distillation range has very important meaning in process of refinery and employ for petroleum products.
浊度是表征水的质量指标之一,热力发电厂化学水浊度的测量与发电机组运行的经济性和安全性直接相关。
Turbidity is one of the indicators of water quality, the measurement of turbidity about chemical water in thermal power plants is directly related with the economy and security of generator unit.
间歇生产过程中,很多质量指标不能在线测量,导致过程很难控制。
There are usually no on-line product quality measurements in batch and semi-batch processes, which makes process control very difficult.
要改善航空服务质量,首先需要有效和实用的测量模型和指标对服务质量进行可靠和准确的测量。
Improving airline service quality calls for an effective and practical measuring model and indicators to measure service quality reliably and accurately.
射击精度是衡量火炮质量的一个重要指标,通过将超声技术用于火炮身管测量以提高火炮身管的加工精度。
Shooting accuracy is a main parameter to judge the quality of artillery. The machining accuracy is improved by using ultrasonic in the measurement of artillery body.
测量不确定度是评定测量质量的一个重要指标,也是评定测量设施能力和计量水平的基本指标。
It is the key index for measure uncertainty to evaluate the measure quality, and the basic index to evaluate the measure establishment ability and metric standard.
成像质量是光学光刻机的最主要指标,硅片调焦调平测量是光刻机控制成像质量的基础。
Image quality is the key performance of the optical lithography tool and it relies on the performance of wafer focusing and leveling measurement system.
随着人们对网络服务质量要求的提高,及时准确地对网络性能,尤其是带宽指标进行测量越来越引起人们的重视。
With the demand for higher quality of service, there is a need for accurate and prompt measurements of the network performances, especially the bandwidth estimation metrics.
Sensitivitycoefficient摘要:热效率是锅炉的主要评价指标,测量参数的质量,对其影响很大。
ABSTRACT: thermal efficiency is a primary evaluating indicator for boilers. The quality of measured parameters influences the thermal efficiency greatly.
为了找出PET产品的聚酯粘度检测的操作条件与质量指标之间的关系,采用支持向量机对聚酯粘度进行软测量建模。
For finding the relationship of operation conditions and index of quality, support vector machine is used for modeling the PET conglutination.
灵敏度是传统上衡量微波辐射计测量精度的主要指标,但并不适合对单帧亮温图像的质量进行评估。
Traditionally, sensitivity is major performance parameter of microwave radiometer measurement precision, but it is not appropriate to quality assessment of single brightness temperature image.
依据教育测量学讨论了试卷质量分析的定量指标,并提出一种基于MATLAB软件的试卷分析方法。
The quantitative indexes based on the principle and methods of educational measurement are discussed. A test paper analysis technique using MATLAB software is also proposed here.
最后,电能质量监测系统对相关电能质量指标进行了测量实验。
Finally, the paper verified the measurement accuracy of the power quality monitoring system by experiment.
本系统可适时测量风力发电电能质量指标,具有掉电保护、报警、通信、保存、显示功能。
This system can not only timely monitor the wind power quality indices, but also has the function of power-down protection, alarm, communication, preservation and display.
根据反应机理确定聚乙烯质量指标的控制变量,利用软测量的建模结果推导质量控制的最优算法。
On the basis of the model built for the soft-sensing for polyethylene quality indicators, the optimal control algorithm was deduced.
信道的群时延指标对跟踪系统的测量精度和通信系统的信号质量都十分重要。
The group delay specification of a channel is very important for rangingaccuracy of a tracking system and signal quality of a communication channel.
在质量控制过程中,噪声是重要的指标之一,由噪声与曝光剂量的函数关系,准确测量噪声还可以作为测量曝光剂量的方法。
The noise is one key parameter on routine quality control. Because the image noise is a function of the dose, precisely measuring the noise is also a method for measuring the dose of ct scanners.
水分含量是粮食的重要质量指标,但由于影响因素复杂,很难实现快速、准确测量。
It is important to measure moisture content of grain quickly but it is difficult to measure quickly and accurately because the effect factors of measuring are complicated.
依据制定的电能质量国家标准,归纳了各项电能质量技术指标的测量原理和计算方法,为电能质量在线分析仪的研制提供了理论依据和算法。
The work is the theory base of developing online power quality analyzer. The online power quality analyzer is designed and implemented in this paper.
依据制定的电能质量国家标准,归纳了各项电能质量技术指标的测量原理和计算方法,为电能质量在线分析仪的研制提供了理论依据和算法。
The work is the theory base of developing online power quality analyzer. The online power quality analyzer is designed and implemented in this paper.
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