多角的

The expressions of dihedral angle and cutting angle of the intersecting groove are deduced by way of space analytical geometry.

利用空间解析几何原理推导了多管、板相贯坡口的两面角和实际切割角的表达式，建立了切割多管、板相贯坡口的数学模型。

ABSTRACT Heliothis armigera nuclear polyhedrosis virus , due to its special pestiferous effect on Heliothis armigera and being innocent to human, livestock and environment, has been a commercial bioinsecticide widely in the world for years.

棉铃虫核型多角体病毒是我国最早注册的杆状病毒杀虫剂，到1999年，约有100，000公顷棉田用棉铃虫核型多角体病毒的生物制剂防治害虫。

In this work,the finite friction force between the refuse and the trommel screen was taken into account,and the relationship between the hoisted angle and the rotary speed was co-related.

从生活垃圾在滚筒筛内的受力分析着手，考虑了物料与滚筒筛筛壁间的摩擦力，其为一有限值，推导出物料的提升角与滚筒筛转速的关系，且物料提升角的大小取决于物料静摩擦角的大小；认为无论滚筒筛的转速多大，物料的最大提升角都是固定不变的。

When compared with S7 and its putative protein of Lymantria dispar cypovirus 1 and Bombyx mori cypovirus 1, 97.2% and 87.0% identities in the nucleotide level, and 98.7% and 92.8% identities in the amino acid level were found, repectively. BLAST search program revealed some similarity between DpCPV-HN P50 and DnaK-like protein of Mycoplasma hominis.

该基因组与舞毒蛾质多角体病毒1型和家蚕质多角体病毒1型S7节段有很高的同源性，核苷酸序列同源性分别为97.2%和87.0%，氨基酸序列同源性分别为98.7%和92.8%。P50多肽与人型支原体的DnaK样蛋白在C-末端有相似性。

The results showed:(1) The histological changes of KC were in fact a wound-repair process;(2) The increased melanin in KC coordinated with "multi-overlapping screen" effect, a result of multiple layers of "supranuclear cap", was the direct cause of hyperpigmentation of the graft and (3) The hydrolytic disturbance of melanin in KC and the longer life span of the KC were probably the important reasons for the increase of melanin in the epidermis.

结果表明，角朊细胞的组织学改变实际上是一个损伤后修复的过程；角朊细胞内黑色素含量增加及出现的多层次的&核上帽&状分布而形成的&多重帘幕&效应，是皮片过度色素化的直接原因；黑色素在角朊细胞内的降解障碍及角朊细胞更新周期延长可能是表皮内黑色素含量增多的重要原因。

A character-codes model based pattern recognition method by using amplitude data of targets frequency response is proposed after the establishment of high frequency response equation of radar targets. The method uses the same unvariant character-codes to express the same target of different angles and uses sequential separating of regions of target's reference variables to obtain multiple coding vectors of all regions for every target. The category and pose of target can be determined after a two-staged classification processing such as coding processing of target range profile data and errors correcting processing of coded data. The two-stage classification results are used to target identification as posterior hypothesis to be tested by sufficient convincing and necessary convincing. The character-codes model based pattern recognition method is also adaptive to variation of target angles and controllable in error probability. Time-consuming and complicated iterative computation is not necessary in the train process of pattern recognition.

首先建立了雷达目标的高频频率响应方程，这种方程将目标多散射中心理论与目标局部谐振理论有机地结合起来；进而提出了目标多频响应结构成像方法，这种方法将瑞利区频率响应或谐振区频率响应曲线的不同部位用各种不同的近似方法去逼近，通过特征谱估计方法将目标的局部频响特征与宽带距离响应特征结合起来；然后提出了一种基于姿态角变化区域的序贯划分与多模匹配的特征编码识别方法，这种方法具有能适应目标姿态角的变化以及能控制识别的差错概率α等优点，在目标识别时只需要目标在少数有限个频率激励下的幅频响应数据。

The reproduciing viruses in the other sensitive cells were with envelopes, and packed in polyhedrons.

在其他敏感组织内增殖的核衣壳大部分被囊膜包围形成病毒粒子，且随机包涵在多角体中形成核多角体。

The results of our bioassay study showed that the mortality rate of the treated larvae depends on the concentration of...

生物测定结果表明，幼虫死亡率依多角体浓度和虫龄而变化，在25℃条件下，3龄幼虫的致死中浓度为1×10~(5.3)多角体/毫升。

It can be concluded that the persistently expression of actin during late stage of baculovirus infection inhibit the polyhedrin expression, and then the formation of polyhedra.

结果表明，晚期表达的外源肌动蛋白抑制了多角体基因的转录和表达，从而导致多角体不能正常产生。

The results showed that DpCPV-W could amplify in vitro in Sf21 cell and form normal polyhedra.

研究了文山松毛虫质型多角体病毒在Sf2 1细胞中的离体增殖行为，并进行了空斑试验，结果显示DpCPV W毒株能够在Sf2 1细胞中增殖，也能在Sf2 1细胞上形成空斑，并能产生形态正常的病毒多角体。

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