查询词典 control criterion

Then, the method to estimate cavitation erosion characteristic of high pressure piston plunger pump by analyzing impingement angle on outlet of throttling groove is put forward. That is, to hold the impingement angle range of 30°～60°as appraisal criterion of cavitation erosion characteristic on high pressure hydraulic plunger pump.4 The throttling characteristic of hydraulic control valve is studied by CFD calculation and experiment.

最后，提出了一个通过分析节流槽出口处的射流方向来评价高压轴向柱塞空蚀特性的空蚀评价方法，即将节流槽出口的射流角范围30°～60°作为评价高压轴向柱塞泵空蚀特性的标准。4对液压控制阀的节流特性进行了CFD数值计算和试验研究。

Since the installation of fire safety is not a part of a building structure and the seismic building design code does not include fire water pipings, the design of them in Taiwan does usually not consider the seismic effect. This study first collected and summarized the relevant seismic design codes and fire control standards from U.S., Japan, China and Taiwan to understand the internationally adopted methods for seismic from designs of fire water pipings. This study also gathered engineering cases and photographs of the installation of the shock resistance hangers of fire water pipings in high technology factory buildings. Then, this study presented a proposal for seismic design principles. we hope this can attract attentions from government authorities and the fire safety business sector and to rise concerns of the seismic design of fire safety installation; and therefore set up a clear and practical criterion for the engineers and finally reduce the damage of post earthquake fires.

由於消防安全设备向来都是归属於非结构物，国内一般在进行结构设计时并未将消防管路纳入耐震设计的范畴内，本研究系针对建筑物内消防管路的耐震设计为议题，搜集并整理出美国、日本、大陆及国内等相关建筑和消防规范的执行现况，以了解目前国际上在消防管路方面所采取的耐震设计手法，本研究也同时汇整了目前国内重大科技厂房新建工程在消防撒水管路耐震吊架上，所采用的设计案例和实际装置后照片，祈能藉由此案例唤起国内相关主管单位和消防业界对建筑物内消防安全设备耐震力设计的关注，共同研议订定出明确、实用且可供大家遵循的消防安全设备耐震设计准则，以减低国内在地震后火灾所造成的危害。

In order to control the steam temperature at the outlet of the primary superheater of a 1000 t/h once-through boiler, the start up condition is analyzed in accordance with the concept of " isenthalpic switchover" and it is suggested that the ratio of fuel feed to steam flow through the primary superheater before the switchover during cold startup be used as the criterion for judgement.

为控制1000吨/时直流锅炉低温过热器出口汽温，本文系根据&等焓切换&原理对锅炉启动工况作了分析，并提出以冷态启动切分前锅炉燃料量与低温过热器工质通流量的比值作为判断依据。

HPLC/MS/ MS was used to analyse the nucleosides in Cordyceps sinensis. and its counterfeits and adulterations,which can further verify the components and content of nucleosides and will help to perfect the criterion of quality control for Cordyceps sinensis

运用液质联用技术对冬虫夏草及其混淆品与伪品中核苷成分进行二级质谱的定性定量分析研究，进一步确认核苷成分及测定其含量，完善利用HPLC对冬虫夏草进行质量评价的依据。

The operation of RCD clamped flyback converter based on peak current control are presented,and the design criterion of the key parameters such as RCD clamp circuit is proposed.

本文论述了峰值电流控制RCD箝位反激变换器的原理，并首次提出了RCD箝位等关键电路参数设计准则。

It also points out that an airline's safety record is not a criterion for renewal of its licence. Nor is the maintenance of airports and air-traffic control systems keeping pace with the industry's expansion.

同时他们指出，航空安全记录并不能作为重新注册许可证的标准，同时维修养护费用和空中交通管制系统能够与航空业的扩张保持一致也不能成为判断的准则。

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里，举止就文雅一些，因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计，这件高贵的制服是香港本土制造，是我们第一套不配帽子的制服。