时期划分

A scientific understanding of the marrow contained in utopian socialism benefits the scientific understanding of socialism.

科学理解空想社会主义的内涵有助于对社会主义的科学理解；空想社会主义的源流可以上推至古希腊时期，这是在对空想社会主义进行阶段划分时需要考虑的因素；空想社会主义不仅仅是资本主义的对立物，它有着更丰富的内容；我们在批判空想社会主义的同时，也必须要警惕社会主义空想。

The2 0 th century was the third high-tlide of researches on paradox in the west following the ancient Greek and Middle Ages studies.Which can be divided into three periods,the first of which was from190 1to the1930 s when Russel discovered it,mainly emphasizing collective paradoxical studies.The second one was from the1940 s to the mid-1970 s,it m ainly stressed the semantic para- doxical studies.

20世纪西方悖论研究是继古希腊和中世纪之后出现的第三次悖论研究的高潮时期，可划分为三个阶段：1 90 1年罗素悖论发现至 30年代末为第一阶段，主要以集合论悖论研究为重点；4 0年代初至 70年代中叶为第二阶段，逐渐转移到以语义悖论研究为重点；70年代中叶至 2 0世纪末为第三阶段，回归到自然语言，在语形、语义、语用的统一中研究悖论问题。

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。