查询词典 drawbacks

At the same time its drawbacks are: material quality, complex, high precision manufacturing, more difficult to install, design complex calculations than the average speed reducer.

同时它的缺点是：材料优质、结构复杂、制造精度要求较高、安装较困难些、设计计算也较一般减速器复杂。

To overcome the drawbacks in the weight and cost of the antenna with the corrugated soft surface, a new patch antenna with patch rings is designed. Its weight is about 1/4 less than the antenna with the corrugated soft surface and it is inexpensive. Good experimental results are obtained. The radiation pattern of the antenna is more rotationally symmetric, and a more reduction on the sidelobe levels of the antenna is achieved as compared to the antenna with the corrugated soft surface. In conclusion, in the present thesis both theoretical and experimental research works have been carried out intensively on patch antennas based on photonic-bandgap structures.

为了克服皱褶软表面天线份量重，加工费用贵等缺点，我们对空气介质的皱褶圆环结构软表面天线进行了改进，将周期分布的皱褶圆环平面化，并保持结构的软表面特性，设计出了一种新的平面圆环结构的软表面天线并进行了实验研究，加工的平面圆环结构天线比皱褶圆环结构天线重量减轻了约1/4，加工费用大大降低，所取得的实验结果显示，该平面圆环结构软表面天线的方向图的轴对称性得到了改善，在俯仰角从0°～-90°的范围内天线H面的波束与E面重合，与皱褶圆环结构相比，天线的旁瓣和背瓣受到了更大的抑制，E面方向图上+120°方向的旁瓣被明显削弱。

Based on the detailed analysis of existing dimension recognition methods, this paper concluded a common limitation of existing methods-"single-entry recognition", which has three distinct drawbacks. First, the only recognition entry reduces the capability to handle drawings of different qualities; second, the fixed search order for dimension elements block algorithm seeking all possible ways to find a dimension structure; third, single directional recognition of graphic elements uses no drawing context and thus can not make use of engineering knowledge.

本文分析了现有的尺寸识别方法，指出它们共有的局限性——单入口的识别过程：单一的识别入口限制了算法对不同质量图纸的适应能力；固定的元素搜索顺序阻碍了算法利用一切可能的途径寻找和识别尺寸标识结构；单向的独立于上下文的图形元素识别忽略了应用领域知识对识别过程的启发作用。

Based on application and research of secondary cooler for shaft furnace pelletizing at home,some problems and drawbacks were pointed out.

针对国内竖炉球团二次冷却器的应用及研究现状，提出其存在的问题，并介绍一种可用来代替目前竖炉球团二次冷却器的新型PZ B型冷却器的设计、冷却原理及应用前

For all the benefits of an initial public offering, the process is not without its drawbacks.

所有的好处，进行首次公开招股，这一过程是不无其弊端。

For all the benefits of an initial public offering, the process is not without its drawbacks.

所有的好处，进行首次公开招股，这一进程并非没有缺点。

Finally, it is concludes that the key to a sustained growth in China is to avoid the drawbacks of SBTC and exploit the advantages of labor force both unskilled and skilled.

要想实现经济的持续发展，需要避免技能偏好型技术进步所带来的缺点，充分利用中国无论是技能型劳动力或是缺乏技能型劳动力的优点。

The problem is that trigger-happy intervention also has its drawbacks.

问题是好战的干预也有它的缺点。

The problem is that trigger-happy intervention also has its drawbacks.

问题是随便干预也有缺点。

In reality, the falsifications have been unsuccessful, which illustrates that despite its drawbacks, market mechanism is still the best mode of resource allocation presently available.

事实上，对市场机制的证伪是不成功的，这表明尽管市场机制有缺陷，但它仍然是现有的配置资源的最好方式。

Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".

歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车，和一双合并为一移交&整个lotta爱&。

This is Kate, and that's Erin.

这是凯特，那个是爱朗。