Butterfly spring valves are important safety attachments of boiler pressure vessels, they are used to prevent system pressure from exceeding allowable limit value.
蝶形弹簧安全阀是锅炉压力容器的重要安全附件，用于防止系统压力超过允许的极限值。
The limit value must be a whole number that is greater than or equal to zero.
界限值必须是一个大于或等于零的整数。
So far, member states of EU have initiated many product recalls due to the DMFU exceeding limit value.
迄今为止，由于产品中富马酸二甲酯(DMFU)超过限值，欧盟各国已发起了多起召回。
An equation to calculate concrete diaphragm walls bending moment is deduced based on the crack control limit value.
推导了由裂缝控制限值反算地下连续墙弯矩的计算方法。
In the case of constant load, the energy release rate will increase with time until it reaches a higher limit value.
在常载荷的情况下，能量释放率将随时间而增长，直到它达到某一较高的极限值。
And through case study discussion, the limit value suggestion which is closer to reality for loop closure is also given.
还通过实例分析讨论了限差取值问题，提出了更切合实际的环闭合差检核限差的取值建议。
The rock strength limit value under different stress states and the strain curve of 3-dimensional full stress are obtained.
获得了不同应力状态下的岩石强度极限值和岩石的三向全应力应变曲线。
In the case of constant displacement, the energy release rate will decrease with time, until it reaches a lower limit value.
在常位移的情况下，能量释放率将随时间而减少，直到它达到某一较低的极限值。
The limit value of interstory drift is an important parameter for the design of reinforced concrete super highrise buildings.
层间位移限值是钢筋混凝土超高层结构设计中的一个重要参数。
However after vibration intensity reached a limit value, melting rate, thickness of melt film and melting length would remain unchanged.
当振动强度达到某一极限值后，熔融速率、熔膜厚度和熔融段长度不再随振动参数的变化而变化。
When the concentration of coexistent ion was 10 times the quality limit value of drinking water, there was no interference to the measurement.
共存离子浓度为生活饮用水水质限值的10倍浓度条件下，不干扰测定。
The velocity error is minor, tends to stable and has small influence on the velocity precision when the S/N ratio is greater than limit value;
当信噪比高于界限值时，速度误差较小且趋于稳定，对速度精度影响较小；
An antibody obtained by performing immunization on the copper ion antigen prepared by the method has good specificity and a lowest detection limit value.
用本发明方法制备的铜离子抗原进行免疫得到的抗体的特异性好、最低检测限值低。
Regenerative braking performance shows that the regenerative braking force's limit value is no more than adhesion value, and meets the design requirements.
再生制动性能表明，动车组再生制动力的值不会超过粘着力限制值，满足设计要求。
By means of parametric analysis, the effect of loading rate and anchor embedment on suction force and limit value of total tension resistance are discussed.
进而通过变动参数分析，讨论加载速率和埋深对吸力和总抗拉力极限值的影响，并给出排水和不排水加载条件对应的临界加载速率。
This article elaborates the solution of asymptote of rational function curve, pointing out both the common way of finding limit value and the elementary way.
文章阐述了求有理函数曲线的渐近线，不仅可用常规的通过求极限值的方法来确定，还可用初等方法来确定。
Based on energy random analysis theory for derailment, a new method to analyze the limit value of bridge lateral rigidity for derailment prevention is established.
基于列车脱轨能量随机分析理论，提出了预防列车脱轨的桥梁横向刚度限值分析方法。
Defining the limit value of oil temperature and automatically controlling the oil return temperature are effective measures for reducing gas and energy consumption.
精确界定油井温度界限值，对回油温度进行自动控制是降低气耗、能耗的有效措施。
A method for dynamic measurement of thermocouples protected by metal tube is developed, and by using it we can greatly raise the upper limit value of thermocouples.
本文提出了采用带保护管热电偶的一种动态测温方法，可大大提高普通热电偶的测温上限。
Based on energy random analysis theory for derailment, a new method for analyzing the limit value of bridge lateral rigidity for derailment prevention is established.
基于列车脱轨能量随机分析理论，提出新的铁路桥梁横向刚度限值分析方法。
OBJECTIVE: To assess the effect of blood lead level on t cell subgroup of children, and the association of t cell subgroup with threshold limit value of blood lead level.
目的：评估血铅对儿童T细胞亚群的影响，以及血铅临界值与T细胞亚群的关系。
The value of passive earth pressure on the foot blade of open caisson varied between the value of the earth pressure at rest and the limit value of passive earth pressure.
指出沉井刃脚所受的被动土压力介于静止土压力与被动土压力极限值之间。
With limit value method, the paper has evaluated the largest stress and its site, and supplied theoretical basis for use of wood based material in architectural engineering.
用极值法求出最大应力的位置和大小，为木材和人造板在建筑上的应用提供理论依据。
The limit value method for calculating processing dimensional chains, formulas of Probability method and reciprocal processing dimensional chains are discussed in this paper.
本文讨论了计算工艺尺寸链的极值法、概率法公式及相关工艺尺寸链公式。
On basis of energy random analysis theory for derailment, a new method is presented with which the limit value of bridge lateral rigidity for preventing derailment can be established.
本文以列车脱轨能量随机分析理论为基础，提出了制定预防列车脱轨的桥梁横向刚度限值的新方法。
The limit value of the steam turbine's relative differential expansion is stipulated synthetically according to the structure, material and the installational axial gap size and so on.
汽轮机相对胀差上下极限值是根据汽轮机的结构、材料、安装轴向的间隙尺寸等因素综合考虑规定的。
Objective: To investigate the acute and accumlative toxicities of hydroquinone in mice and rats and to provide the information for establishing the threshold limit value of hydroquinone.
目的：研究氢醌对小鼠和大鼠的急性毒性和蓄积毒性，为建立卫生标准提供资料。
Reasonable reservoir pressure level is studied by numerical simulation, and the limit value of correlative parameter is determined, which provides theoretical foundation for improving t...
针对这一现状，利用数值模拟技术，对该油藏合理压力水平进行了研究，并确立了相关参数的界限值，为改善特高含水期油田开发效果提供了理论依据。
The characteristics of trains flow are investigated and the impacts of the length of speed limit section, train time interval and the speed limit value are analyzed by simulating train running.
通过模拟，探讨了限速区段的轨道交通流特性，分析了限速区段长度、发车时间间隔和限速值对交通流的影响。
Based on theory of random energy analysis of train derailment, a new method was put forward to establish the limit value of bridge lateral rigidity with which derailment on Bridges can be prevented.
基于列车脱轨能量随机分析理论，提出了预防列车脱轨的桥梁横向刚度限值的制定方法。
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