可抑制的

From the lumped equivalent circuit model, the phase shift/attenuation and impedance characteristics of the novel structure are first analysed based on the Bloch theory, which shows the novel structure has properties analogous to those of a bandpass filter: the attenuation constant keeps zero with a continuous and smooth characteristic impedance distribution within the passband and the bandwidth may be arbitrarily specified; characteristic impedance is purely imaginary with the inhibition of the electromagetic wave propagation outside the passband.

首先从一般的等效电路模型出发，根据Bloch周期性理论对该结构的相移、衰减和阻抗特性进行了分析，结果表明该新结构具有类似带通滤波器的特性：通带内衰减常数为零，特性阻抗为实数并随频率连续平滑分布，具有可任意指定的阻抗匹配带宽；带外特性阻抗为纯虚数，电磁波传播受到抑制。

Literature Research The etiological factors of POF are not still clear. The changes of sites and numbers in X chromatosome, X; autosome translocations, a forkhead transcription factor gene (FOXL2) mutations, FRAXA premutations and inhibits gene mutations are found in POF patients, so genetic disorders have been thought to be involved. Irradiation, chemotherapy or pelvic operations can damage ovaries and cause ovarian atrophy and failure, so it is thought one factor of POF.

一、文献研究 POF的确切病因目前尚不清楚，从POF患者体内检测到X染色体上位点和数目的变化，X染色体与常染色体间的平衡易位，脆性X基因前突变，FOXL2基因突变，抑制素基因突变等，故认为POF发生与遗传因素有关；由于放射、化疗或盆腔手术等可损伤卵巢，导致卵巢萎缩，出现卵巢衰竭，故也是导致POF的因素之一。

In order to eliminate direct current drift and saturation problems of pure integrator for back electromotive force,an improved programmable low-pass filter rotor flux estimator was proposed to replace the pure integrator.

为了有效抑制反电动势积分环节所存在的直流偏移和积分饱和问题，采用一个截止频率可根据输出频率进行自调整的低通滤波器来代替传统电压模型磁链观测器中的反电动势积分环节。

The system is useful in bioluminescence imaging technology in vivo, expression of MDR1 gene and screening anticancer drugs.

该系统不但可以用于研究活体生物发光成像和MDR1基因表达的机理，而且可用于单靶点的多药耐药抑制剂的筛选。

Aspirin or celecoxib can inhibit the growth, urease activity and vacuolating cytotoxin activity of H pylori in vitro significantly.

阿司匹林及塞莱昔布可剂量依赖性的抑制 H pylori 的尿素酶活性及空泡毒素的活性。

The "no-fly pollution, clean health", including the human body needs calcium, phosphorus, iron, carotene, ammonium acid, niacin, ascorbic acid and various vitamins, has a high nutritional value, which in the human body VB17 can degrade to form benzaldehyde, and then into a acid and ammonium hydride, can inhibit cancer cells die and break, with a clear role in anti-cancer Cancer

该产品"无蚊蝇污染，干净卫生"，含人体需要的钙、磷、铁、胡萝卜素、硫铵酸、尼克酸、抗坏血酸及多种维生素，有很高的营养价值，其中VB17在人体内可降解成苯甲醛，进而转化成铵得酸和氢化物，能抑制和休死癌细胞，有明显的防癌治癌作用

Doxy treatment inhibits the activity of MMPs, the SMC proliferation ofintimal, neointimal hyperplasia and vascular remodeling which suggesting Doxy treatmentbe useful in preventing restenosis after PTCA.

用球囊扩张法可成功建立大鼠颈总动脉损伤膜型；Doxy 可以显著降低血管损伤后 MMPs 活性，抑制内膜 SMCs 的增殖、新生内膜增生以及后期的管腔重构，提示它可能具有防治 PTCA 术后再狭窄的作用。

It could make the gene expression that has the same source sequence of siRNA dumbness and would not influence to other functions of the gene. It has strong specificity, and no poison function.

RNA干扰效率高，抑制基因表的效率可达90％以上，只使具有与siRNA同源序列的基因表达沉默而不影响其它基因的功能，所以特异性强，无毒副作用。

Under appropriate conditions embryonic stem cells have been shown to differentiate in vitro to multiple cell types of endoderm, mesoderm and ectoderm.

一旦撤除分化抑制因素，或添加适当的诱导剂，ES细胞可分化为内胚层、中胚层和外胚层的多种类型的特化细胞。

Inoculating lactic acid bacteria resulted in a rapid drop in pH,and had the ability to control the growth of pathogenetic microorganisms in ensilage of the corn straw. The fiber content of the straw inoculated with cellulase as decreased from 35.3% to 25.3%,and the level of water soluble carbohydrate was higher than that of the control.

玉米秸秆黄贮过程中接种乳酸菌可以迅速降低原料的pH值，有效抑制腐败菌生长；添加纤维素酶，可以使秸秆的纤维含量由原来的 35 。3%降低到 2 5 。3%，并增加可溶性碳水化合物含量；同时使用酵母菌，可使粗蛋白含量提高 10 %。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。