- 科: Ⅰ名詞1 （學術或業務的類別） a branch of academic or vocational study 2 （機關按工作性質而分設的單...
- 因: Ⅰ動詞[書面語] （沿襲） follow; carry on Ⅱ介詞1 [書面語] （憑借; 根據） on the basis of; in accord...
Endangered abies yuanbaoshanensis will probably have been extinct, so it very necessary to studying its genetic diversity with a proper way in order to save this key group of biological diversity in china
The beach ridge of tai wan has a special zonation of vegetation and has been a site of special scientific interest since 1979
Last december, they also formally established the supreme master ching hai international association in their country, whereupon they began to broadcast master s teachings on the radio each day to convey the message of the quan yin method to their compatriots
For this reason, our objective is the research of the mechanism of runoff generation and characteristics of moisture changing process of slope farming purple soil, accordding to the theory of hydrology and the intergrated - means of compined the hydrology with the peodology, because it is the basis of the studies : soil erosion and protection, farming - land water balance, non - point pollute, etc., and the direction gist of runoff arrange implement, solving water hazard and management of irrigation and fertilizer
And the survey also indicates some other existing disadvantages, which has caused the failure to accomplish the efficacy proposed above and has brought about analysis on the main reasons underlying as follows : subjectively, the school leaders and teachers are not fully aware of the importance of teachers " participation in educational research, teachers lack of professional knowledge about doing research, and they do not have enough time or energy ; objectively, the unreasonable evaluation system, imperfect investment system and administration system, and inefficient information acquisition and exchange are all obstacles to a successful educational research