写论文摘要时以一般现在时为主。
介绍背景知识时，要用一般现在时，例如：
Speech recognition is the task of converting speech into text.
语音识别是将语音转换成文本的任务。
叙述研究现状时，也可以用一般现在时，例如：
This essay is to analyse how the era influences corporate cultures, and to give suggestions on the building of corporate cultures.
本文旨在分析时代对企业文化的影响，并对企业文化建设提出建议。
叙述研究结果时，大多数用一般过去时，例如：
Our text achieved the possibility above.
我们的文本实现了上述可能性。
At present in the world medicine market 's most popular novel drug delivery system is a transdermal drug delivery system ( TDDS ), it is a collection of novel preparation, safety, convenient use, high rate of profit. Gel patch is a transdermal agent in one," Chinese Pharmacopoeia" provisions that can stick patches on the skin, the drug can produce systemic or local effects of a slice preparation [1 ]. Gel patch is a water soluble polymer material as a substrate, medication adherence, the mixing, coating, cutting processes prepared, with convenient use, improving the compliance of patients, thus has high bioavailability. The experiment based on matrix ratio, forming process and quality evaluation for areas such as research, establish the corpus luteum ketone body patch quality standards, the preparation of the corpus luteum ketone body extension pressure patch, to the senses, initial adhesive strength, cohesive force . Study prescription and process factors on the transdermal preparation influences, and the establishment of a accurate determination of drug release in vitro and in vitro percutaneous permeation amount of HPLC method.
Keywords: transdermal gel formulation factors; factors; process; quality evaluation 92好论文网优秀论文大全
Therefore, we should on the basis of absorbing international legislation beneficial experience first transform the guiding ideology, to serve the generation of regulation, based on the convenient network group and safeguard the legitimate rights and interests;Improve network security level protection system;Define the hierarchy of modern network security legal source, eliminate effect conflict;Refine the network safety legal system and rules of procedure and enhance interoperability;Revision information security related rules in other laws;Improve the system of network security crime criminal sanctions, extended care security of civil protection system.
