From the teaching practice, the author sums up six methods of introduction of new chemistry courses.

根据作者教学经验，总结了六种化学新授课的导入方法。

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This paper summarized the survey in studies of techniques for introducing exogenous DNA into plants and various methods of introduction. This technique has definite potentiality in crop improvement.

本文综述了近年来植物外源dna导入技术概况及各种具体的导入实施方法，指出该技术在作物改良上具有一定的潜力。

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Each of these methods compares an infant's state prior to the introduction of a stimulus with its state during or immediately following the stimulus.

所有这些方法都把引入刺激前婴儿的状态与引入刺激时或之后婴儿的状态进行比较。

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Mr. Verwaayen, among others, suggests the introduction of different methods of interacting with our devices.

WSJ: European Corporate Leaders Weigh In on 2012 Technology Trends

Its factories were being transformed with the introduction of Japanese production methods, observed at close hand in the transplant factories set up by Nissan, Toyota and Honda in Britain.

ECONOMIST: Europe's great car war

Mr McNeil said it would take a combination of efficiency savings, consolidation of services between councils, the introduction of charges for council services and unrolling the methods of the best performing councils across all 32 local authorities in Scotland.

BBC: Local government finance inquiry debate