外径

It includes bore/outerside diameter deviation from basic, inner ring/outer ring width deviation in single radial plane.

几何精度包括内径偏差、平均内径差、外径偏差、平均外径差、套圈端面平行差的允许值。

The cable bend radius for single core should be not less than 16 times of overall cable diametet;for multi-core cable,not less than 12 times of overall cable diameter.

电缆弯曲半径为：单芯电缆不小于电缆外径的16倍；多芯电缆不小于电缆外径的12倍。

By means of analyzing the influence of OD surface roundness error on the outer raceway of bearing ring, the processing method of bearing on internal grinder electromagnetic centerless clamper was improved, the influence of roundness error on outer raceway was decreased, meanwhile, the product quality was raised with less waste products.

通过分析轴承环外径表面圆度误差对轴承环外滚道的影响，改进了轴承在内圆磨床电磁无心夹具上的加工方法，降低了轴承环外径定位表面圆度误差对轴承环外滚道的影响，提高产品质量，达到了降低废品损失的目地。

Anatomical study proved:①.4~8 nutritional vessels of sural nerve –small saphenous vein were the intermuscular perforators of peroneal artery, the furthermost one located at(1.0±1.3)cm above the tip of external malleolus with diameter (0.6±0.2)mm;②.2~6 musculocutaneous perforators were given off by the artery of outer head of gastrocnemius muscle to supply nutrition to the sural nerve-small saphenous vein;③.intermuscular perforators from peroneal artery supplied blood to fibula and outer head of soleus muscle.the perforators with an average outer diameter of （1.3-1.6）cm gave off cutaneous branch ,fascial branch and nutritional vessels to the sural nerve-small saphenous vein,which formed the vessel chain of the sural nerve-small saphenous vein ,sub-fascial and suprafascial vessel net.

结果：1、解剖实验证实：①、腓肠神经-小隐静脉营养血管来自腓动脉肌间隔穿支4～8支，最远的跟外侧动脉穿支距外踝尖上(1.0±1.3)cm，外径(0.6±0.2)mm。②、腓肠肌外侧头动脉沿途发2-6支的肌皮穿支营养腓肠神经-小隐静脉。③、腓动脉肌间隔穿支营养腓骨、比目鱼肌外侧半。上述穿皮支平均外径在0.3～1.6mm，发出皮支、筋膜支、腓肠神经-小隐静脉营养血管，形成腓肠神经-小隐静脉血管链以及深、浅筋膜血管网。

It can replace the artificial fixed device.Conclusion The simple gassiness retainer is a very practical assistant apparatus in CT interventionao radiongy,and prevents medical worker and patient relatives from contacting the danger of the X-ray,which worth popularizing and applying.

笔者经过3年余的实践探索，设计和制作了简易充气式CT介入外固定器，经临床342例使用，取得了满意效果。1材料和制作(1)材料：内径为3cm(可根据穿刺针大小不同而改变)、上方外径6cm、下方外径12cm、高10cm(可根据穿刺针高度不同而改变)优质可充气空心圆台一个底坐

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产品系列有：玻璃仪器，玻璃工艺品，玻璃管，玻棒；玻璃试管系列有：烧瓶，容量瓶，量筒，标准磨口仪器；玻璃工艺品系列有：烛台，油灯，灯罩，灯管，花瓶，爱情温度计，圣诞球，铃铛，天使，烟斗，水烟壶，阿拉伯水烟袋，沙漏，计时沙漏，玻璃耐热茶壶，茶杯，茶海；高硼硅玻璃管系列有：外径3—300mm，壁厚0.6—1mm，玻璃棒外径系列有：3—40mm，彩色棒3—20mm 欢迎国内外客户来电洽谈！

2 Acceptable Curvature Radius:not less than four times of outer diameter of cable,not less than twelve times of outer diameter for copper tape screened cable and armored cable.

3.2允许弯曲半径：不小于电缆外缆外径的4倍，铜带屏蔽及铠装电缆不小于电缆外径的12倍。

Results :The external pudendal artery mainly originated from the anteromedial wall of the femoral arteries and was 5.09±0.83 cm in length.

2.3 长度和外径阴部外动脉主干的长度从起始点至分支处的平均长度为(5.09±0.83)cm ，起始点和分支处的外径分别为(0.28±0.05)cm 和(0.14±0.02)cm 。

On August 24, an external diameter amounts to 1.63 meters, precision exceeds the bearing of biserial cylinder roller of P4 class, get offline smoothly in LYC company, fill home is blank.

LYC企业趼发岀境内最大最高，细度轧机轴承-精度工序外径产品摘要：8月24日，一套外径达1.63米，精度超过P4级的双列圆柱滚子轴承，在LYC公司顺利下线，填补了国内空白。

An experimental apparatus to simulate large external diameter is built in our laboratory. On this apparatus a micrometrical experiment has been done.

在第六章，对在实验台上搭制的大外径模拟测量系统进行了介绍，并在该系统上进行了测微实验、长时间稳定性实验和大外径大范围变化的模拟对比实验。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。