《英文科技论文写作常用句式》由会员分享，可在线阅读，更多相关《英文科技论文写作常用句式（4页珍藏版）》请在金锄头文库上搜索。
1、Abstract:1、Introduction (Motivation/ purpose/goal/aim/objective/importance) (present tense) 1）The aim of this paper is to assess the accuracy of steady-state scale-up for small-scale sedimentary structures.2） An important objective of these well-constrained experiments is to evaluate current theoret
2、ical models of PGE solubility.2、Scope/perspective (past/present tense)1）This study examined fecal coliform reduction in domestic wastewater after receiving treatment through a constructed open water wetland, a slow sand filter, and a portable ultraviolet disinfection unit.2） The scope of this study
3、was to compare the behavior and character of dissolved organic carbon (DOC) during soil-aquifer treatment at different field sites in Arizona and California.3、method/procedure/approach (past tense)1）In this study, a lab-scale aerobic biofilter-biotrickling tower system packed with particulate plasti
4、c media (1.5 cm, hexagon in shape) was used to treat the salty artificial wastewater polluted by mineral oil (diesel fuel) mixed with chemical dispersant (CPC OD-10) and inorganic nutrients. 2）It involved recycling a small portion of the primary sludge and then activating it to enhance its biosorpti
5、ve and flocculent properties through 30-min aeration. The aerated sludge was then brought into contact with raw sewage to induce rapid biosorption of soluble COD and flocculation of colloidal organic before the mixture was settled in a regular primary clarifier.4、Results/findings/products (past tens
6、e)e.g. Three granitoid magmatic events were identified at 815 Ma, 700-730Ma, and 620-625Ma, which were marked by emplacement of the calc-alkaline Ujjukka granite and granodiorite, the anatectic Suqii-Wagga two-mica granite and the Guttin K-feldspar megacrystic granite, and the anorogenic Ganjii monz
7、ogranite, respectively.5、Discussion/Conclusions (present/past tense)e.g. The results showed that under traction free conditions subsidence was a three-dimensional problem and one-dimensional subsidence models tended to focus excessive amounts of vertical deformation near the pumped well. The magnitu
8、de of vertical deformation in one-dimensional subsidence models was exacerbated as the grid size became smaller in the vicinity of the pumping well. This was due to increased calculated drawdown in the vicinity of the well for more finely-spaced grids.6、Implications/applications (present tense)e.g.
9、Our experimental results are directly applicable to porphyry copper systems because in such systems temperature, PH, salinity and oxygen fugacity are similar to the experimental parameters. Application of our experimental results indicate that a typical porphyry systems can transport at least 40 ton
10、s of Pd if sources of platinum group elements (PGE) are available and the solubility-controlling phase is metallic Pd.7、limitations and suggestions for further studies (past/present tense for limitations, present/future tense for suggestions)e.g. 1) This study suggests that in order to achieve the h
11、ighest treatment level of secondary unchlorinated wastewater, a combination of aquatic ponds and subsurface flow wetlands may be necessary. 2) In general, source water quality, drinking water and wastewater treatment should be viewed as one system in indirect potable re-use projects. 3) However, bec
12、ause constructed wetlands, besides the water quality improvement function, perform a multitude of other functions such as biodiversity, habitat, climatic, hydrological and public use functions, methodologies need to be developed to evaluate these functions and to weigh them in relation to the water
13、quality issue.Structure of an Abstract：1、The first sentence in the Abstract: The purpose of this research is The primary goal of this research is The intention of this paper is to survey The overall objective of this study is The chief aim of the present work is to investigate The purpose of this pa
14、per is to explain why The primary object of this fundamental research is to reveal The main objective of our investigation has been to obtain The experiment made here is aimed at The emphasis of this study lies in The problem we have outlined here deals largely with the study of This study examined.
15、 (past tense)2、The next sentences： The method used in the study was The technique applied is referred to as The procedure was as follows The approach adopted extensively is called The experiment consisted of three steps: Included in the experiment were The test equipment which was used consisted of
16、Several sets of experiments were carried out to test the validity of This formula is verified by3、The ending part of an abstract： The results of the experiment indicated that The studies showed that The studies we carried out demonstrated that The research suggested that The investigation carried out by revealed that All the preliminary resu
