查询词典 diameter

Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides that a safety valve Safety valves opening height shall be not less than one quarter of the valve throat diameter, or one-twentieth of the valve throat diameter.

推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的开启高度应不小于四分之一的阀门喉径或二十分之一的阀门喉径。

Recommended National Standards GB/T12243-2005 "spring load safety valve directly," provides a safety valve opening height shall be not less than one quarter of the valve throat diameter, or one-twentieth of the valve throat diameter.

推荐性国家标准GB/T12243-2005《弹簧直接载荷式安全阀》规定，安全阀的开启高度应不小于四分之一的阀门喉径或二十分之一的阀门喉径。

Processing capability, wire diameter of 0.2 ~ 10 mm, bar diameter 12 ~ 60 mm, disc spring plate thickness 0.2 ~ 26 mm.

加工能力，钢丝直径0.2～10毫米，圆钢直径12～60毫米，碟簧钢板厚度0.2～26毫米。

Methods Bilateral spermatic veins and testis volume of 73 men with varicocele and 30 normal men were detected by Color Doppler Ultrasound,and analysed about the correlation between the spermatic vein diameter and testis volume,and the correlation of the bilateral spermatic veins;the volume change of left testis and diameter change of left spermatic vein of 23 men in the case were retrospectively analysed.

采用彩色多普勒超声对30例正常人及73例精索静脉曲张患者的双侧精索静脉及睾丸体积进行检测，分析双侧精索静脉内径之间、患侧精索静脉内径与睾丸体积之间的相关性；回顾分析其中23例患者左侧精索静脉内径及左侧睾丸体积的变化。

Higher measuring precision and higher measuring speed of the diameter gauge was required. In this paper, all kinds of diameter gauge were reviewed through extensive reading of the technical papers and reports.

本文通过广泛阅读资料和调研深入了解了目前各种光学测径仪器的发展现状，并研制了一种基于激光和CCD器件的高速度高精度测径仪。

A small-diameter cable with outside diameter of 0.45 mm was manufactured with the extrusion process and its properties were analyzed.

采用挤塑方式研制出外径为0.45mm的液晶聚合物小直径光缆，分析了该光缆的基本性能。

Most of them are in small-diameter and middle-diameter, which are located in densely populated areas. Once the leaks happened, the damages are more serious.

我国大量的中、小口径油气输送管道分布在人口较稠密的地区，一旦发生腐蚀泄漏事故，其后果将更为严重。

The external diameter of a quartz liner is determined to be 36-46mm, the inner diameter to be 32-40mm and the length of the liner to be 1.45-1.85m for the process of PCVD. Parameters of a processing technology are that the high frequency power of a microwave resonator is controlled to be 6KW-15KW and the deposition temperature is 1080-1130 degree Celsius. The variety of mixed air flowing through the liner includes silicon tetrachloride vapor, germanium tetrachloride vapor, high-purity oxygen and Freon. The inside pressure of the liner is 10-15millibar. The air flow rate inside the liner is

取石英衬管的外径为36～46毫米、内径32～40毫米，衬管长度1.45～1.85米，进行PCVD加工；加工工艺的参数为：微波谐振腔的高频功率控制在6KW～15KW，沉积温度1080℃～1130℃，流经衬管管内混合气体的种类：四氯化硅蒸气、四氯化锗蒸气、高纯氧气、氟里昂，衬管的管内压力为10-15毫巴，管内气体流速为30-80米/秒，气体体积流量为4400SCCM-8800SCCM。

On the basis of stand of masson pine in Hubei Province, an advantageous height growth model、models of stand self-thinning,diameter growth before thinning and after thinning,diameter distributions model,tree height curve was formulated,and forcast model of wood recovery by stem analysis was established.

利用湖北省马尾松人工林的样地资料，建立了优势高生长方程、林分自然稀疏方程、未疏伐林分直径生长方程、疏伐后林分生长预测方程、直径分布模型、树高曲线方程；根据现场造材资料，建立了材种出材率预测模型。

The reverse force self-expansion rivet as one fastener part has one small head and one small-diameter neck in the root part as well as one integral expansion sheet with the same diameter as the shaft in between.

目前国内外所使用的《胀钉》是螺杆式的《他胀钉》，它构件多，成本高。因此，本人发明了简易的《反力自胀铆钉》来满足各种材料的铆制紧固上。其结构特点是在钉杆根部有直径偏小的颈部和小头，还在其间有与杆同径连体的胀片。

The system can be widely used in belt weighing and batching process control,etc.

介绍了基于智能模糊控制的嵌入式配料系统的设计方法，对模糊PID控制过程和系统调零作了重点的讨论，同时给出了PID控制的程序流程图和系统定长调零子程序。

"I dunno," she answered,"but if you show me aroun', I'll recognize it from the lighthouse just outside the porthole."

"我不知道，"她回答说，"如果你能带我转转，我能认出来的，因为灯塔就在舷窗外。"