回声

Results:1、Three distinct bladder mucosa patterns were seen:normal mucosa and wall,but the urine was light-echogenic;the mucosa and wall thickened with enhanced echoes and irregular mucosa;local mucosa thickened in rhomb or flat figure.2、The bladder wall diffusively thickened or somewhere,three layers of the wall clear or obscure.3、Some echoes spots floating in the urine.

结果：1、膀胱粘膜图像可分为三类：A、粘膜未见确切异常回声，但尿液有漂移光点；B、粘膜弥漫性增厚，回声增强，粗糙不光滑呈细颗粒状、断续状表现；C、粘膜局灶性增厚呈棱形或扁平状；2、膀胱壁回声可正常，弥漫性增厚或局灶性增厚，三层结构可辨，基本可辨或分辨较差；3、尿液内出现不同程度的光点透声。

Echo chamber refers to a person who totally, obsequiously agrees with everything another person says, just like an echo chamber that is used to produce echoing sounds, usually for recording purposes.

这里的"回声筒"指的是某人为了献媚而完全同意另一个人所说的一切，就像录音时用来制造回声效果的回声筒一样。

All intrapancreatic accessory spleens were well marginated and were round in three patients, ooid in two, and lobulated in one Figs.

所有胰腺内副脾回声均匀、与主脾的回声一致。5例胰腺内副脾显示后方回声增强，所有病例均有高回声晕（图1、2）。

Results 12 cases as abdominal hernia (of which indirect hernia 9 cases, direct hernia 2 cases, femorocele 1 case), ultrasonography shows middle-high echo or linkage heterogeniety echo clumps; 8 cases as hydrocele, Ultrasonogram shows anechoic; 2 cases as cryptorchidism, ultrasonography shows normal testicular middle-echo; 4 cases as lymph node mass (of which lymphoma 2 cases, lymph node metastasis 1 case, lymph node inflammatory change 1 case), acoustic image shows low weak echo; 4 cases as substance mass (of which fibroma 1 case, spermatic cord tumor 1 case, Desmoid tumor 1 case, spermatic cord inflammation 1 case), Ultrasonography shows non-uniformity middle-highor low echo.

结果 12例为腹外疝（其中斜疝9例、直疝2例、股疝1例），声像图表现为中高回声或混杂性回声团块；8例为鞘膜积液，声像图表现为无回声；2例为隐睾，声像图表现为似正常睾丸样中等回声；4例为淋巴结包块（其中淋巴瘤2例、淋巴结转移1例、淋巴结炎性改变1例），声像图表现为低弱回声；4例为实质性包块（其中纤维瘤1例、精索肿瘤1例、韧带样瘤1例、精索炎症1例），声像图表现为非均匀性中高回声或低回声。

Internal echoes: 11 cases were homogeneous with high echoes, 4 cases were high echoes with low echoes, 1 cases was high echo with echoless, 1 cases was missed diagnosis. Blood signal were not found in all caseson on color pepoler US.

超声表现为均质型强回声11个，强回声区内分布低回声4个，囊实混合性回声1个，1个漏诊，彩色多普勒超声检查上述病灶内均未见明确血流信号。

Internal echoes: 11 cases were homogeneous with high echoes, 4 cases were high echoes with low echoes, 1 cases was high echo with echoless, 1 cases was missed diagnosis. Blood signal were not found in all caseson on color pepoler US.

超声表现均质型强回声11个，强回声区内分布低回声4个，囊实混合性回声1个，1个漏诊，彩色普勒超声检查上述病灶内均未见明确血流信号。

Twelve tumors were solid and three contained cystic components. Nine were inhomogeneously hypoechoic. Two were homogeneously hypoechoic. Two were inhomogeneously isoechoic. Two were homogeneously isoechoic. Two contained microcalcification. One with acoustic shadowing. Twelve were well-defined and three were ill-defined. Fourteen were regular and one was irregular. Four had acoustic halo. Six were ecstatic. Nine were not ecstatic. Thirteen were examined with color Doppler ultrasound. Nine had abundent branched blood flow within the tumor and ring blood flow around. Two had short linear blood flow within the tumor and ring flow around.

不均质低回声9个，均匀低回声2个，不均质中等回声2个，均匀中等回声2个。2个肿瘤内见细小钙化斑，1个伴声衰减。12个肿瘤边界清，3个边界欠清。14个肿瘤形态规则，1个形态不规则。4个肿瘤伴&晕环征&。6个肿瘤有膨胀感，9个肿瘤无明显膨胀感。13个肿瘤行彩色超声检查，9个内部见丰富分枝状血流，周边见环状血流，2个内部见短线状血流，周边环状，仅2个内部无彩色血流，周边见点状彩色血流。

The indirect sign included the stercolith in the appendix with sound shadow; periappendicular absence echo or deposit echo when appendicitis complicated with exudation or perforation; mixed swollen echo on the right hypogastric region when abscess formed; dilation of intestine; local ileocecal edema or mesenteric thickening and encysted greater omentum.

横断面呈&靶环征&或圆形回声。2 间接征象：阑尾内粪石并声影；阑尾炎有渗出或穿孔时周围的无回声区或有沉积物回声；脓肿形成时为右下腹混合性肿块回声；肠管扩张；回盲部肠管局限性水肿或肠系膜增厚和大网膜包裹。

The echolocation signals at flying, foraging behaviors and food types of 4 endemic species in China were studied. The results were described as followed:(1) Rhinolophus rex has long CF-FM signals, low dominant frequency with the range of 26. 8±0.2kHz, which is the lowest in the recorded Rhinolophidae.

2.4种中国特有蝙蝠飞行状态下的回声定位信号和根据回声定位信号推测出捕食策略和食物类型：（1）贵州菊头蝠回声定位信号为长CF-FM型，能量最大处频率非常低，为26.8±0.2kHz，是已有记载的菊头蝠科中回声定位频率最低的。

The endometrial echo patterns visualized sonographically were divided into three categories by Gonen: pattern A: present a triple-line pattern or multilayered endometrium in which hyperechogenic outer lines and a well-defined central echogenic line were visualized, with hypoechogenic or black areas seen between lines; pattern B: present an echo pattern in which the endometrium had the same echogenicity as the myometrium, the central echogenic line is dim; pattern C: present a homogenous endometrium with no central echogenic line.

按照Goden等人的分型标准，晚滤泡期子宫内膜在超声下可以分为三种类型：A型：即三线型，为外层及中部强回声，外层与宫腔中线之间为低回声区或暗区，宫腔中线回声明显；B型：为均一的中等强回声，宫腔中线回声不明显；C型：为均质强回声，无宫腔中线回声。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐