特点

The method was sensitive and specifical, can be used to control the quality of cut crude drug from aconite root.

结论液-质联用方法具有灵敏、专属性强的特点，适用于微量生物碱的检测。

The study of systematic botany and its characteristics of Eco-geographical distribution of the genus Aconitum in Inner Mongolia.

内蒙古乌头属植物分类研究及其生态地理分布特点。

Production of mineral wool decorative acoustic board is set, acoustic insulation, fire retardant, cold insulation, anti-bacterial characteristics of insulation in one of eight senior decoration materials.

生产的矿棉吸声板是集装饰、吸声隔音、防火阻燃、隔冷绝热、抗菌绝缘八大特点于一体的高级装饰材料。

Mineral wool acoustic board are set decoration, sound-absorbing insulation, fire retardant, cold insulation, energy-saving insulation in one of the eight characteristics of advanced materials.

矿棉吸声板是集装饰、吸声隔音、防火阻燃、隔冷绝热、节能绝缘八大特点于一体的高级装饰材料。

Mineral wool decorative acoustic board, are set decoration, sound-absorbing insulation, fire retardant, cold insulation, energy-saving insulation in one of the eight characteristics of high-level decorative materials.

矿棉装饰吸声板，是集装饰、吸声隔音、防火阻燃、隔冷绝热、节能绝缘八大特点于一体的高级装饰材料。

Mineral wool decorative acoustic board, are set decoration, sound-absorbing insulation, fire retardant, cold insulation, energy-saving insulation in one of the eight characteristics of advanced decorative materials.

矿棉装饰吸声板，是集装饰、吸声隔音、防火阻燃、隔冷绝热、节能绝缘八大特点于一体的高级装饰材料。

Composite T - paint keel for the modernization of building advanced mineral wool decorative acoustic board ceiling, and its appearance, strength and fire performance will be better quality to replace T-aluminum alloy keel, with light weight, high strength, durability, aesthetics, construction Convenience and guarantee construction quality characteristics such as skeletons belong to the standard directional ceiling products.

复合式T型烤漆龙骨用于高级现代化楼宇矿棉吸声板的吊顶装饰，其外观、强度和防火性能方面将以更优质量代替T型铝合金龙骨，具有质轻、高强、耐久、美观、方便施工和保证施工质量等特点，属于吊顶骨架标准的方向性产品。

Studied every acoustic and vibration characteristics of vehicle system making use of the SEA car model that had been established. Utilizing the specialty of SEA, contrasted the acoustic contributing of panel in every frequency bands by comparing the radiant energy into cab directly with creativity. Compared the effects of every type of factors on the interior acoustic environment of car.

七、利用建立的统计能量分析模型进行车辆系统各个声振特性的分析，研究车辆行驶速度和行驶路面的等级等因素对车内声学环境的影响；利用统计能量分析方法的特点，创造性地通过直接计算仿真实际工况下各个部件对车内辐射能量的对比进行板件各频带声学贡献的分析。

Using transfer matrix method to analyze microperforated panel absorber s acoustic characteristic;2. The possibility and the significance of replacing fibred absorption materials by fibreless materials,especially by microperforated panels,are discussed.

简要地介绍了吸声材料的基本特点，阐述了无纤维性吸声材料（特别是微穿孔板吸声结构）取代传统的纤维性吸声材料的可能性及其重要意义，较详细地介绍了近年来德国以及我国科研人员在无纤维吸声材料研究上所取得的进展。

In order to reduce calculation in the process of vertical scale identification of torpedo acoustic image,we present an improved decoherent multiple signal classification method based on quadrature complex sampling which suits to estimating the vertical highlights of submarine with the characteristics of near distance and coherent signals .

在鱼雷声成像垂直尺度识别中，根据潜艇垂直方向上目标亮点相距较近，且为相干信号源的特点，同时为了减小运算量而易于工程实现，提出了一种基于正交采样的高分辨DOA估计算法，即正交解相干MUSIC算法。

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