查询词典 medium frequency

Seismic division into districts pursues medium introduced diagnostic earthquake model and interceptive G-R model, the magnitude that in order to states fault - frequency distributinging relation.

在1996年地震区划图中引入了特征地震模型和截断的G-R模型，用以表述断层的震级-频度分布关系。

Three important conclusions are achieved: 1 By analyzing the demand for spatial resolution of recording medium in different digital holographic recording setups, it shows that lensless Fourier transform holography can relax the requirement of spatial resolution and use the full spatial bandwidth of the CCD sensor. 2 Because of the differences of spatial resolution of image planes in different directions, reconstructed images can be relatively extended in the direction of high spatial resolution and reduced in the direction of the low one. 3 Lateral resolution of the reconstructed images is mainly determined by the highest spatial frequency of digital holograms recorded by CCD, and increases with the larger CCD size, the higher spatial resolution of the CCD sensor, and the shorter recording distance.

通过分析几种不同数字全息记录光路对记录介质空间分辨率的要求表明，无透镜傅里叶变换全息光路对CCD的空间分辨率要求最低，最能充分利用CCD的带宽；再现像面的空间分辨率在不同方向上的不一致，会导致再现像在空间分辨率高的方向上相对展宽，而在空间分辨率低的方向上相对压缩；再现像的横向分辨率主要由CCD所能记录的物体的最高空间频率决定，它随CCD的尺寸和空间分辨率的提高及记录距离D的减小而提高。

Higher frepuency of germination , lower frequency of abnormal seedling , rapid growth and tender plantlets of Matthiola incana were obtained from the seeds cultured on MS basal medium without any hormone , which helps in inducing calli .

紫罗兰组织培养的研究(1)愈伤组织诱导及植株再生的研究：紫罗兰种子在不含任何激素的MS培养基上，发芽率高，畸形苗率低，幼苗生长快速，较鲜嫩，有利于愈伤组织的诱导。

Calli were induced at a high frequency of 76.4±3.2% from petiole explants excised from two-month-old plants on Murashige and Skoog medium supplemented with 5.37 μMα-naphthaleneacetic acid and 4.44 μM 6-benzyladenine.

采用2个月苗龄植株的幼叶柄为外植体，接种於附加5.37μMNAA和4.44μMBAMS培养基，愈伤组织诱导频率高达76.4±3.2%。

The advantages of Fluorphlogopite Mica are: good penetrativity of light and wave; long time operation at the temperature up to 1100°C; anticorruption of strong acid and alkali and nocuous gases; almost no loss in high frequency medium; 2000-time-smaller vacuum deflation at high temperature than inartificial mica while 1000-time-higher body resistance than inartificial mica.

氟晶云母优于其他云母的关键点在于：优秀的光、波透过率；可长期在高达1100℃的高温环境下工作；抗强酸、强碱及有害气体的腐蚀；在高频介质环境下基本没有损耗；高温真空放气量比天然云母小2000倍，体电阻率比天然云母高1000倍。氟晶云母是替代天然云母、聚四氟乙烯、石英玻璃等低性能材料的新型耐高温、高频、绝缘材料。

The highest transformation frequency 11.21% was achieved on the optimization facts, which were medium YEB with pH5.6, bacterial concentration OD 600=0.4, precultivation for one day, cocultivation for four days, the coculaivation media supplemented with GA3 0.5 mg/L and leaf explanst growed for 45 days.

研究了影响转化频率的主要因素，得出在使用pH5.6的YEB培养基，菌液浓度OD600＝0.4，45日苗龄中部叶片预培养1 d，共培养4 d，共培养的培养基中加入0.5 mg/L GA3的条件下可使转化频率提高到11.21%。

The effects of variety preculture time, activate medium of A.tum, concentration of Ca, inoculation time, treated with AgNO3 and PVP or not, delay selection time on transformation frequency were studied as well. The results demonstrated that using 20Omg.LCef, 8 mg.L1Kam.

结果表明，使用200mg.L~(-1)Cef、8mg.L~(-1)Kam、预培养2天、使用GCJ8活化培养基、在预培养和共培养基中使用5倍Ca~离子浓度、侵染1分钟、使用4mg.L~(-1)AgNO3和0.7％PVP，延迟筛选5天时取得了最高的转化频率。

The results showed that, using transient GUS expression, the frequency of resistant calli and shoot differentiation as a criteria, wheat mature embryos were cultured on the preculture medium of CM4C1P for 14 days, and immersed in inoculation suspension Ⅰ for 3 hours, then the explants were co-cultured under desiccation conditions for 3 days, which was optimal conditions for Agrobacterium-mediated transformation of wheat mature embryos.

为了进一步完善根癌农杆菌介导的小麦遗传转化体系，以小麦成熟胚为转化受体，研究了根癌农杆菌介导法转化小麦的主要影响因素，结果表明，以gus基因瞬时表达率、抗性愈伤组织获得率和分化率为转化指标，小麦成熟胚在预培养基CM4C1P上预培养14d后，用侵染培养液Ⅰ侵染3h，再经干燥共培养方式处理3d，是根癌农杆菌介导成熟胚转化的合适条件。

The experiment obtains clone pig HUMMLC2B gene (GenBank logs onto date: DQ533994), use PCR-RFLP technology, analysed HUMMLC2B gene the 1st embedded child medium Msp Ⅰ is enzymatic cut much condition (T613C) is in distributinging; analysed the much condition sex in 7 breed pig 5 many condition sex and 36 long white pigs, groups 104 pigs and grow to be mixed in vain 5, the result makes clear, the scale that waits for a gene and B to wait for a gene frequency except the A in long white pig in detected swinery is 1 ∶ 2 outside, of the others all take absolutely advantage for a gene such as B, and a gene such as A is pure close individual detect in long white pig only.

实验获得克隆猪HUMMLC2B基因(GenBank登录号：DQ533994)，并采用PCR-RFLP技术，分析了HUMMLC2B基因第1内含子中的MspⅠ酶切多态(T613C)在7个品种猪中的多态性分布；分析了多态性和36头长白猪、5个群体104头猪以及长白和5个群体之和的140头猪胴体性状和肉质性状间的相关，结果表明，在检测的猪群中除长白猪中A等位基因和B等位基因频率的比例为1∶2外，其余的均为B等位基因占绝对优势，且A等位基因纯合个体只在长白猪中检测到。

Somatic embryogenesis is a remarkable illustration of plant totipotency,and under appropriate culture medium can develop to an adult plant with high frequency, so it is a excellent system for genetic improvement.

植物体细胞胚发生是植物细胞全能性的重要体现，在适宜的培养条件下能够以较高的频率再生出完整的植株，是植物遗传改良受体系统。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了