查询词典 high frequency

The permo-carboniferous coal measures in North China Basin were formed under the condition of epicontinental sea which was characterized by the extreme gentle slope and high frequency of sae-level changes, the contemporaneous margin portion of which was probably very far or had been destroyed during the proccess of plate subduction and continental collision. The lowstand systems tract, therefore, has not be discovered up to now.

华北晚古生代内陆表海古地貌上表现出的极缓的基底和海平面的高频变化，具有特殊性，其同期的边缘海部分可能距离很远或在板块消减及大陆碰撞过程中被破坏掉，因而至今未发现低位体系域存在的证据。

On the silicon substrate an epitomical layer is made,where IC components are formed subsequently.In an CVDprocess,the silicon substrates places in a vacuum crystal tube are first heated to 1,600°C by high-frequency radio power and then H⒉Cl⒉Si and certain gaseous compounds of As or P is injected into the tube to make a deposit of several um on their surface.Ions of As or P are impurity deliberately added to the singl-crystalline silicon structure to supply electrons that transmit "negative"current in the silicon crystals,which is called n-type silicon.Bcan be added as impurity to produce p-type silicon that supplies holes for transmitting "positive"current.Whether a p--type of an n-type silicon substrate is needed depends on what type of transistors is expected to be manufactured on it:n-p-n type of p-n-p type

对硅衬底上的一个epitomical层了，而IC零件形成subsequently.in一个CVD法（化学气相depsition ）过程中，硅衬底的地方在真空晶体管均先加热至1600 ° C时，由高频率的无线电功率，并然后h ⒉氯⒉硅和某些气态的化合物，砷或P ，是注入试管，使存款的几位嗯对他们surface.ions的作为或P是杂质刻意添加到单结晶硅的结构，以供应电子传递的&负面&目前，在硅晶体，即所谓N型silicon.b ，可以增加一条，作为杂质产生的p型硅供应孔转递&积极& current.whether一个P -类型的一个n型硅衬底，是需要靠哪些类型的晶体管预计将在制造上它： NPN型的PNP型

Aggregation supplies a interactive ,accurate and creative room for puting into for customers on the foundation the high frequency exposal and speaking generally.

聚合是在高曝光、广而告知的基础上给客户提供一个聚合了互动性、精准性和创意性的投放空间。

Faddy short messages refer to those short literal messages which have a high frequency of copy,a fast speed of popularity,a vast area of spreading and a great power of influence.

时尚短信是指复制频率高，流行速度快，传播面积广，影响力度大的文字短信，它已成为现代人最为重要和流行的一种交际时尚。

Objective:To evaluate the diagnostic role of high frequency ultrasonographyand CDFI for breast fibroadenoma of both the male and the female.

目的：对乳腺纤维腺瘤高频声像图与CDFI的表现进行探讨。

this paper makes a detailed study on the chinese learners' use of the high-frequency verb get by comparing the evidence from weccl and flob.

摘 要：本文研究了中国大学生和本族语者在使用高频动词get上的差异，结果表明：1）中国学生严重超用了get+n。

Objective To establish the canine fusiform carotid aneurysm model and evaluate the value of high-frequency ultrasound in the aneurysm.

目的 建立犬梭形动脉瘤模型，探讨高频超声评价该动脉瘤的价值。

High frequency ultrasound is valuable in diagnosing or recognizing cystic hyperplasic of breast .It can be widely used to examine patients with galactophore disease .

结论高频超声对乳腺囊性增生病的诊断和鉴别诊断有较大的临床应用价值，在乳腺疾病普查中可广泛应用。

Aim Discuss the diagnoses value and pathology base to galactophore trumour diagnosed by high frequency ultrasonic.

目的 探讨高频超声对乳腺肿块的诊断价值及其病理基础。

In the progeny of monosomic addition lines a high frequency of wheat-alien species translocation with various segments of chromosomes could be found by application of both PCR and GISH technique.

利用PCR和GISH原位杂交相结合的方法可提高检测外源染色体小片段的准确性和选择效率。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！