具有重要意义

It exerts important significance on sci-tech history of mining and smelting and historical culture research, since this mine is one of a few rare mines in China that are qualified to restore the technique scenes of "decrepitating method" mining and "cupellation method" smelting.

公园拥有诸多采矿遗址，其中黄岩坑古矿硐规模最大，保存最完整，古代文献记载最丰富详实，是国内稀有的有条件恢复&烧爆法&采矿、&灰吹法&冶炼工艺场景的矿山，对矿冶科技史和历史文化研究具有重要意义。

These are significant for the study of icing mechanism and the design of anti/deicing equipments.

这些工作对深入认识积冰机理和防/除冰装置的设计具有重要意义。

It is therefore important to understand the vibration characteristic of multiple delaminated composite plates to the accuracy in design and the safety in use of composite structures under the dynamic loading.

研究含多分层损伤复合材料层合板和加筋板的振动特性，对于在动荷载作用下的复合材料层合结构设计的准确性、使用的安全性都具有重要意义。

Delimitating gender discrimination and maintaining women's equal right of employment is of great significance to building a harmonious socialist society.

消除性别歧视，维护妇女的平等就业权，对建设社会主义和谐社会具有重要意义。

Firstly the paper digitalizes relief map and analysis the "non-source flood" and "source flood",then using self function of ArcMap or ArcView to calculate flood submerged area of source flood and non-source flood area respectively;next,for proving means feasible,the paper takes 2003 flood data of lower reaches of Weihe River as example to contrast or validate.

因此，快速、准确、科学地模拟预测洪水淹没范围以及计算洪水淹没面积，对防洪减灾具有重要意义。20世纪90年代以来，特别是近几年来，在水动力-水文模型基础上，利用GIS强有力的空间分析和可视化功能，模拟显示洪水淹没区，一直是一个研究热点。

Rural land system dominates an important position in politics and economy in China.

农村土地产权制度安排问题，在我国政治经济生活中具有重要意义。

As a agricultural country, there are plenty of resources in our country, according to statistics, every year there are 3.4826 billion tons dungs and 0.62 bilbon tons straws in rural of China, these organic wastes constitute the main garbages of the rural, so applying anaerobic biological fermentation method to produce hydrogen from the dungs and straws has important meanings whether in recovering energy or managing the environment.

据统计人禽畜粪便排泄量每年可达34.826×10~8t，而各种农作物秸秆可开发量每年也为6.2×10~8t。这些有机废弃物，构成了农村最主要的有机垃圾资源。因此，实现农作物秸秆、牲畜粪便的厌氧发酵产氢，无论从回收能源，还是治理环境方面都具有重要意义。

As to the excavation of the slope, if there are not the cases such as particular direction conformation weak side, rock crack generate randomly or slope of open-pit mine of soft rock effloresced notably, and the slope being stable, but adjacent industry and civilian construction suffering obviously form the impairing of excavation even destroyed, It is of the same importance for engineering to study the movement and deformation law influenced by the pit excavation with stochastic medium theory.

对于边坡工程开挖而言，若不存在控制边坡滑动的定向构造弱面、岩石随机裂隙发育或风化显著的某些软岩露天矿山边坡，以及边坡稳定，但邻近的工业建筑与民用建筑受到显著开采损害，甚至破坏的情况，用随机介质理论研究边坡体在开挖影响下的移动与变形规律对工程与生产同样具有重要意义。

The research of consumer s brand decision is important for company because it is the embodying of brand cognition.

品牌决策是品牌意识的具体体现，研究消费者品牌决策对企业具有重要意义。

Through manipulating the air content of mixture to control concrete frost resistance is the universal method in projects, but the study on the effect of concrete pore structure change after air entraining to the concrete frost resistance and impermeability is few, the study on the effect of mineral additive to concrete pore structure and durability is even fewer, so carry on this aspect research has significant meaning.

通过控制拌合物的含气量来控制混凝土的抗冻融性，是目前工程中普遍采用的方法，但引气后混凝土的孔结构变化及其对抗冻、抗渗等耐久性的影响研究较少，而无机盐类外加剂对混凝土孔结构及其耐久性影响的研究更少，因此开展这方面的研究具有重要意义。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。