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It suggests that GCA is superior to SCA in the whole heredity and variation. That is to say, the dominant effect of heat tolerant character in cabbage is not significant, and the additive effect is most important.

结果表明,在总的遗传变异中,代表加性遗传效应的一般配合力方占绝大部分,而特殊配合力方比例很小,仅占总变异的4%,显性效应不显著。

The result showed that the variance of special combining ability was significantly better than that of the general combining ability in amount of cocoon crop and cocooning rate to newly hatched larvae, meaning that non-additive effect of these two characters was dominant in cross combinations, but additive effect of thousand-cocoon weight was dominant.

结果表明:除千粒茧质量外,产茧量和收蚁结茧率的特殊配合力方显著地大于一般配合力方,说明在杂交后代这2个性状的非加性效应占主导地位,而千粒茧质量则以加性效应为主。

By using Lebesgue s dominated convergence theorem,several new comparison theorems for the oscillations of the difference equations with continuous arguments were established.

利用Lebesgue控制收敛定理,建立了具连续变量分方程振动性的几个新的比较定理,给出了具连续变量分方程强迫振动性的充分条件,并举例说明了强迫项对方程解的振动性的影响

Five novel torsion-mirror optical actuators including double-beam thickness differential structure with single torsional axis, double flexible folded-beam structure with single torsional axis, double-beam vertical torsion comb structure with single torsion axis, four-beam differential compound-micromirror structure with double torsional axis and the combined structure of the four basis forms above, are brought forward. All of these devices could be fabricated by the same silicon micromachining process we have developed. The deformation compensation design with local enhancement for the thin torsional beam which is the key structure of these devices is also put forward to improve the reliability. The three-dimension solid model and two-dimension reduced order model of the torsion-mirror optical actuator are established and then the numerical simulations for evaluating the device characteristics of the statics, dynamics, electrostatic field, mechanical and electrostatic coupling, fluid and solid coupling are carried out to optimize the structure design. Furthermore, three optical fibre clamping structures which could be integrated monolithicly are designed and analyzed to improve the optical coupling capability. 4. Three flexible process flows combined with bulk silicon micromachining and surface silicon micromachining are brought forward to fabricate these novel single-crystal silicon or polysilicon torsion-mirror optical actuators by using the same lithography masks for both SOI wafer and regular silicon wafer. A series of important process experiments are carried out to optimize the process parameters and the process flows. Some novel and typical process phenomena which occurred during the microfabrication are analyzed and then the corresponding solutions are put forward. 5. A MEMS dynamic testing system which exploit blur image synthetic technique, stroboscopic image matching technique, stroboscopic mirau microscopic interferometry technique and microscopic laser dopper vibrometer technique is set up to measure three-dimension and six-freedom micro motions of any MEMS devices with nanometer resolution.

在对硅微机械扭转镜光致动器的光机电特性系统地理论研究的基础上提出了硅微机械扭转镜光致动器的结构设计准则。3、提出了单轴双梁厚度分结构、单轴双柔性折叠梁结构、单轴双梁垂直扭转梳齿结构、双轴四梁动复合微镜结构以及以上四种基本结构组合后的衍生结构等五种工艺加工技术兼容的新型的硅微机械扭转镜光致动器,对器件关键结构薄厚度、高耐疲劳扭转梁进行了局部加强的变形补偿设计,建立了器件的三维实体模型以及两维降阶模型,对提出的新结构硅微机械扭转镜光致动器进行了系统的静力学、动力学、静电场、力电耦合和流体固体耦合的建模仿真与优化设计,同时设计并分析了三种可实现单芯片集成的弹性光纤定位夹紧结构。4、提出了组合体硅微加工技术与表面硅微加工技术、兼容同一套光刻版图、可分别基于SOI 晶片和普通Si 晶片、适应于制造提出的各种新结构单晶硅和多晶硅硅微机械扭转镜光致动器的三套柔性加工工艺流程,开展了一系列重要工艺步骤的单项工艺试验,对工艺流程与工艺参数进行了优化,针对加工过程中出现的具有普遍意义的典型工艺问题进行了讨论和分析,并提出了解决方法。5、创新性地将模糊图像合成技术、频闪图像匹配技术、频闪Mirau 显微干涉技术与显微激光多普勒测振技术有机结合,建立起了一套周期运动测量与瞬态运动测量相结合、单点运动测量与全视场运动测量相结合、满足不同MEMS 器件各种动态测试要求的集成的MEMS 三维六自由度微运动精密测量系统。

The results show that airflow and temperature distributing are the best in the lower berth area,second in the hit berth,and the worst in the upper berth;the nearer from door,the better the distributing of airflow and temperature,the temperature in doss area is lower than that in aisle area.

研究结果表明:下铺区域的气流组织及温度分布较好,其次是中铺,上铺区域的气流组织及温度分布较;距车门越近,气流组织越好,车厢中部区域的气流组织最;床铺区域的空气温度较走廊区域的空气温度低。

This paper introduced the use of differential pressure meters which use a double cone as the primary differential pressure producer. Its typical structure helps the V-cone flow meter have strong ability of flow adjustment, and operate with good accuracy at low DP's.

压式V锥流量计独特的结构使其具有较强的流动调整能力,可测湿气体,能在低压下测量煤层气等显著优点,已在美国的煤层气工业开采中得到了大量的应用。

In the case of double line spectrum, modulation ratio changes as a periodic function of light-path difference with the period of λ〓/△λ.

在有一定宽度的谱线情况下,调制比随光程的增加而衰减,因而存在一个最大光程λ〓/△λ。

Based on the stress optics law and the theory of elasticity thermal stress, the relation between optic path difference of double refraction and main stress difference is derived.

基于应力光学定律和弹性热应力理论,导出双折射的光程与主应力之间的关系。

Our company is a private enterprise which was establised in 1998, specializing in manufacturing precise filters, automatic drainer, air pressure gauge and other purify equipment parts.Our products are precisely processed by CNC machinel lathe,thus about 99.9% of the products do reach the standard level requirement .

公司建于1998年,主要生产精密过滤器、自动排水器、压表、压器及其它净化设备配件,公司的产品均采用CNC数控车床进行精密机械加工,产品合格率达99.9%。

The main idea of this method is: after the double difference ionospheric delay of rover station is eliminated, and other bias relating to frequency of carrier are ignored, the double difference ambiguities are directly searched by only one epoch data using the linear the relation between dual frequencies ambiguities and the integer characteristic of ambiguities.

该方法的主要思想为:当双电离层延迟误消除之后,并且忽略其它与频率有关的误,不解方程组,直接利用模糊度为整数和双频数据之间的线性关系,对流动站的双整周模糊度进行搜索。

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推荐网络例句

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气,收缩臀部肌肉;拱起身体,尽量抬起头来,右腿伸直朝向天花板(膝微屈,以避免肌肉紧张)。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化,但却比去年同期高8%。

However, to get a true quote, you will need to provide detailed personal and financial information.

然而,要让一个真正的引用,你需要提供详细的个人和财务信息。