查询词典 high frequency

We have previously established The high frequency regeneration system by using the young leaves of Platanus acenfoliaWill as the culturing materia.

我们已经建立了利用悬铃木叶片培养诱导植株的高频再生体系。

The degree of hearing loss is moderate to severe, and more pronounced in high frequency. Classically the goiter appears in mid-childhood, but is often postpubertal.

听力损失多为中度至重度，以高频较为严重，甲状腺肿多发生在青春期之后。

After having established genetic transformation system with tomato cotyledons as explant and determined the transformable of preculture time,incubation time and co-culture time,we set up the system of high frequency transformation of tomato cotyledons.Then hBMP-3m gene was transferred into tomato via Agrobacterium-mQdiated transformation,and the resistant plants to Hyg were obtained.

建立了以番茄子叶为外植体的遗传转化体系，确定了预培养时间、浸菌时间及共培养时间等转化条件，建立了番茄高频转化系统，然后通过农杆菌介导法将hBMP-3m基因导入番茄，并且获得了Hyg抗性植株。

Cotyledon explants culture ; preculture procedure ; high frequency shoot regeneration ; Brasscia napus ; Brassica campestris

子叶离体培养；预培养程序；高频率芽再生；甘蓝型油菜；白菜型油菜

Objective To evaluate the value of high-frequency ultrasound and X-ray barium meal examination in diagnosis and typing diagnosis of congenital hypertrophic pyloric stenosis.

目的 探讨高频超声与X线钡剂造影对先天性肥厚性幽门狭窄诊断与分型诊断的价值。

Switching-mode power supply ; electromagnetic interference ; coupling path ; high frequency radialization

开关电源；电磁干扰；耦合通道；高频辐射

The high frequency radiosurgical knife spherical iron electrode technique was applied, coupled with postoperative policresulen treatment, and different degrees of cervical erosion treatment and postoperative pregnancy situation were compared.

采用高频电波刀球形电极电熨术，术后辅以聚甲酚磺醛治疗，比较不同程度的宫颈糜烂治疗效果及术后妊娠情况。

According to the phenomena of high-frequency reignition after the interruption ofthe line current by vacuum interrupter s,the auther analyses and discusses some factors thatinfluence the interrupting characteristics of the HF current of vacuum inlerrupters.

本文结合真空断路器开断工频电流后所产生的高频重燃现象，对影响真空断路器高频电流开断特性的一些因素进行了分析和探讨。

Long time, because the main city of Chengdu is located in the hinterland of Sichuan Basin, the seasonal high frequency of calm winds, temperature inversion strength, subject to a special geographical environment and climatic conditions, in a natural state, city over to respirable particulate matter, sulfur dioxide, represented by the proliferation of difficulties in dilution of air pollutants, resulting in a large number of pollutants in the basin, retention, accumulation.

长的时间，因为成都的主要城市是位于四川盆地，平静的季节风高频率的腹地，逆温强度，受特殊的地理环境和气候条件在自然状态，城市对可吸入颗粒物，二氧化硫，由空气污染物的稀释扩散代表的困难，在污染物在盆地，保存，造成大量积累。

There is now a corporate business card printing and membership card making roller is used by the relatively high frequency in business card printing and membership card to make a color swatch and large text, inking insufficient operators often use largening monlchamus tuhung plinthitic roll roll and retrohepatic methods to increase the amount of ink.

此刻有的企业制卡和会员卡制作所搁置的网纹辊线数偏矮，在制卡和会员卡制作色块和不小的笔不朱时，不朱度不敷，因此不不安纵者必然拔取增不小不朱斗辊与网纹辊间隙的办法来补充不求不朱度。

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