束

Six cases were found to have normal direction of flow,but in the functional test of the involved upper limb,the reversal flow peak value of the ill vertebral artery increased,or the direction of flow turned from normal to reverse.2-dimensional ultrasound showed that 90% of subclavian steal syndrome were caused by arteriosclerosis,10% caused by aortitis.

结果 TCD检查时，24例患者中18例均表现为椎动脉血流反向，肢体束臂试验反向血流增加，6例血流方向正常，束臂试验患侧椎动脉反向峰值血流速度增快，或由正向变为反向。二维超声示引起锁骨下动脉盗血综合征的病因动脉硬化占90％，大动脉炎占10%。

Original my students holding bunches of apricot, are standing silently in front of me.

原来我的学生捧着一束束杏花，正默默地站在我的面前。

The finite-difference time-domain method is adopted to simulate the propagation of the optical wave in the beam splitter.

采用时域有限差分法模拟了光波在分束器中的传播行为，并计算了分束器的传输效率。

Results Fascicles and certain amount (207) of motor fibers from the anterior division of C7 were distributed to musculocutaneous nerve and median nerve, the orientation of these fibers were not clear. The ones (323) from posterior division were to the axillary, radial, and dorsal thoracic nerves, thus the orientation of these fascicles was relatively definite.

结果 大鼠C7神经根前股发出一定数量的运动纤维到肌皮神经、正中神经，总量约207根，但在C7前股定位不明确；后股发出相应的运动纤维束支到桡神经、腋神经与胸背神经，总量约323根，这些束支在C7后股的定位较明确。C7神经根所支配的范围很广，其中以C7后股发出的胸背神经束支支配的背阔肌占比例最大（运动纤维含量＞50%）。

Kenaf phloem bundle fiber layers were separated by five treatments, and the diameter and maximum tensile force of bundle fiber of each layer were measured.

通过5种处理方法分离红麻韧皮部束纤维层，测定各层束纤维的直径d及其所能承受的最大拉力Fmax，计算束纤维的极限抗拉强度σ。

It is treated with six fields (Anterior, Posterior, four obliques) positioned 60° apart around the circumference of the patient, each dual field is made up of two component beams, pointing ±15° with respect to the horizontal. The nominal energy of electron beam produced by Mevatron Ⅻ is 3MeV, and the patient is treated at a distance of 3 meters. Using Capintec dosemeter and PS-033 electron beam chamber for measurement, one moniter unit of radiation is equivalent to 0.0127cGy. Measurement of electron energy by Kodak X-omat-V verification film inside the Rando phantom at 100 cm SSD was 3.70MeV, electron energy measured at 3 meters was 3.51MeV. X-ray contamination was measured as 9.5% per six dual fields.

此种方法分别使用六个双照野，由病人的前、后、左前、右前、左后、右后各间隔60度共六个方向照射，每一双照野由水平向上和向下15度照射；荣民总医院选择3MeV电子射束来治疗病人，治疗距离为3公尺，利用擬人假体及柯达X-omat-V验证片实验得电子射束初始能量从3.7Mev变为3.51MeV，六个双照野之X光污染共达9.5%，使用Capintec剂量表及PS-033型电子射束用游离腔测量六个双照野，每一监测单位相当於0.00127 cGy。

Objective:A GF-AAS method was established for the determination of lead in tipping paper,filter plug wrapping paper,diacetate cellulose tow,polypropylene fiber tow,glycerol triacetate for cigarette,polypropylene fiber tow filter rod adhesive,polyvinyl acetate emulsion adhesive,hot melt adhesive.

目的：建立了接装纸、成形纸、醋纤丝束、聚丙烯丝束、三醋酸甘油酯、聚丙烯丝束胶粘剂、白乳胶、热熔胶等8种滤嘴用卷烟材料中铅的测定方法—石墨炉原子吸收光谱法。

The bunch lengthening is mainly due to potential well distortion and longitudinal microwave instability . From the systematical measurement of the bunch longitudinal distribution, the inductance and resistance parts of coupling impedance of the BEPC storage ring are got.

束长拉伸主要是由于势阱畸变和纵向微波不稳定性，本论文从束团纵向分布的测量中，首次得到BEPC储存环耦合阻抗的电感和电阻部分，并用所得到的耦合阻抗模型对束长拉伸进行验证。

Results:The anterior bundle of the UCL starts from anterior inferior part of the medial condyle,and ends on the sublimis tubercle in front of the coronoid process of ulna,locating in the deep layer of the flexor carpal ulnar muscle.The distance between ulnar nerve and UCL is (0.9±0.1)cm in the center of cubital tunnel,and (0.6±0.3)cm in the distal foramen of cubital tunnel.The distance from the point of ulnar nerve entering the flexor carpi ulnar muscle to the medial epicondyle is (3.7±0.8)cm.The distance between the closest branch innervated flexor muscle of the median nerve and the approach is (1.6±0.5)cm at the level of medial epicondyle,and (0.9±0.4)cm at the level of ulnar tubercle.

结果：UCL前束起于肱骨内侧髁的前下方，止于尺骨冠突内侧的小结节，UCL前束位于尺侧腕屈肌肱头、尺头之间的深层；尺神经在肘管中部与尺侧副韧带前束的平均距离为(0.9±0.1)cm，在肘管的远侧出口，距尺侧副韧带的尺骨止点(0.6±0.3)cm；尺神经至尺侧腕屈肌尺头肌支的入肌点距肱骨内侧髁的距离为(3.7±0.8)cm；正中神经最靠近切口的分支距切口的距离，在肱骨内侧髁和尺骨结节水平分别为(1.6±0.5)cm和(0.9±0.4)cm。

The former consists of LaBe crystal cathode, Wehnelt grid and an accelerating anode, and the latter is comprised of two equal radius concentrating cylinder electrodes.Its well known that the x-ray radiation emitted by electron-beams acting on metal target surface has well developed for about 100 years.

LaB_6电子枪发射的电子束经过静电聚焦系统，被会聚为微米级的电子束斑，该微束斑电子束与固体金属靶相互作用，产生出微束斑的X射线，从而形成微束斑X射线源。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。