无学的

Dense alloy coating without pore and inclusion is obtained which metallurgically bonded with steel but existing a few cracks. The results show that the cladding alloy coating is mainly composed of single-phase Fe3Al, and the microstructure is coarse equiaxed grain-groups that consist of large amount of fined slug like Fe3Al grains, between which some adjacent grains have the similar orientation.

试验获得了致密、无肉眼可见气孔、夹杂的合金层，合金层与基体间完全冶金结合，但存在裂纹现象；熔覆合金层主要由单相Fe3Al构成，覆层组织为粗大等轴状晶团，等轴状晶团由大量极细小的条状Fe3Al晶粒构成，一些相邻的条状晶粒之间具有基本一致的晶体学取向。

As a new diagnostic method, DTI technology should be a routine examination for cerebrovascular diseases.3 DTI sequence should be added when the patient with cerebral ischemia has been examinated by routine MRI and found LA or cerebral infarction on acute stage in doubt. DTI can find hyper-acute and acute cerebral infarction immediately in order to treat the illness in time.4 DTI technology can reflect the mini-alter of alba formation pericerebral infarction with non-invasion in vivo. It can also appraise the degree of cerebral infarction and anticipate the result.

应作为脑血管病影像学常规检查。3对于临床上有脑缺血表现的患者，其常规MRI检查仅发现有脑白质疏松或怀疑有急性期脑梗死，应该加做DTI序列以便及时发现并治疗疾病。4 DTI可在活体无创性的反映脑梗死灶周脑白质结构的微细改变及评估缺血性病变损伤的严重程度和预测脑梗死结果。

Neurogenesis and development of the central nervous system in the embryo stage of swimming crabs, Portunus trituberculatus, were studied by the histological method.

应用组织学方法研究三疣梭子蟹胚胎期中枢神经系统的发生和发育，光学显微镜下镜检切片，在第二期卵内无节幼体阶段开始观察到脑；第二期卵内状幼体阶段，前脑由视神经层、侧原脑和中央原脑组成，与位于食道两侧的中脑和后脑形成完整的脑。

objective to explore some ct characteristics and risk factors for traumatic chronic bilateral subdural hematoma.methods a total of 52 patients with chronic subdural hematoma were reviewed.some ct characteristics of bcsdh were studied first.then,the risk factors for bcsdh were determined by logistic regression model from the following variates: age,gender,prediagnostic duration,site for injury force,coma experience and ct showing after injury.results bcsdh was observed in 44.2% of 52 patients with csdh.

作者单位：第三军医大学大坪医院野战外科研究所神经外科，重庆 400042 目的探讨创伤性双侧慢性硬膜下血肿的ct特征及危险因素。方法回顾有随访资料的创伤性慢性硬膜下血肿52例。先研究其ct表现，然后采用多因素logistic回归分析从以下变量中，如年龄、性别、伤后&潜伏&时间、受伤着力部位、受伤时有无昏迷经过、伤时ct表现等确定bcsdh发生的影响因素。

There is good application prospect, especially at the therapy of tumor. The technique and device of infrared does not damage human and does not pollute environment. It can diplay the screenage on body's organ metabolism function, while other diagnosis apparatus can...

红外线的技术和仪器对人体无损害，对环境无污染，具有其他影像诊断设备所无法做到的人体器官代谢功能影像显示，开辟了以功能学为主的医学影像技术新领域，为疾病诊断和医学研究提供了影像显示手段和技术支撑，在医学实践及总结中发挥着重要作用。

None of the other potential prognostic factors evaluated (including patient age, gender, tumor grade, tumor location, subtotal resection, presence or absence of cranial nerve palsies, total dose, 3D conformal radiotherapy, duration of symptoms, or radiological response) were associated with patient overall survival in multivariate analysis.

以多变数分析评估其他一些可能的预后因子（包括病患年龄、性别、肿瘤的分化程度、肿瘤位置、是否接受手术切除、有无脑神经麻痹、放射治疗总剂量、三度空间顺形放射治疗、症状的持续时间、或影像学上肿瘤是否变大）均不影响病患存活率。

In viewpoint of the lack of enough basic data of foreign oilfields, under the conditions of insufficient core data, no constrains of seismic interpreted cross and fault data, the rational fine 3D geological model has been established by fine oil reservoir characterizing technique including the contrast results of individual layers, second well logging interpretation and so on.

针对国外油田多数基础资料不全，必须在缺乏取心资料，无地震解释层面及断层数据约束的条件下，运用层序地层学小层对比结果和二次测井解释等精细油藏描述技术，并插入虚拟井控制井间构造，进而建立了合理的精细三维地质模型，为该油田的储层预测及数值模拟提供了基础数据，并在实际应用中取得了良好效果。

She had learned the self-deprecating ways of the woman who does not want to be thought hard and grasping, but her artifices could not always cover the nakedness of her need to excel.

她已学得女人自贬的方法不要被认为严厉又贪婪，但她的技巧不能永远掩盖她无掩饰求优越的需求。

Years old, 25 being colonic cancer,51 being rectal cancer, 31 had limph-node metastasis, 13 had distant metastasis.In the present study, 44 cases of gastric cancer with normal gastric mucosa and 62 caese of colorectal cancer with there normal mucosa was detected CD44v6 raRNA expression using reverse transcription-polymerase chain reaction.

结果 胃、大肠的正常动膜有少量CD44V6表达：胃癌、大肠癌组织CD44V6VRNA、蛋白的表达率均高于其正常锚膜（P＜0.00），44例胃癌组织 CD44V6IuRN表达阳性率在不同的性别、发生部位、大体类型、组织类型、组织学分化程度、浸润深度和TNM分期间差异无显著性。

People are particularly stressed out right now, and often emotional stress turns to physical stress, which turns to worse posture, which turns to pain, which turns to more stress, says Wendy Young, a certified ergonomist in Houston and author of the e-book, getinsideyourcomfortzone.com.

Wendy Young是一位工作学学者，他说，&现在的人们压力太大了，心理压力经常转化为生理上的压力，这会导致人们采用更糟糕的工作姿势，进而引起疼痛，又转化为更大的压力。&海纳百川有容乃大，壁立千仞无欲则刚

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