20世纪以来，随着工业、技术、科技的大步前进给环境造成了惊人的破坏。

Since the 20th century, with the impressive progress in industries, technologies and science, marvelous changes have been taken place in our life.

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在这标准材料之后，作者前进给省略功能和给最全部包括一的味道这个领域的美丽结果的省略模函数。

After this standard material, the authors step forward to elliptic functions and to elliptic modular functions including a taste of all most beautiful results of this field.

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当第二筒部从打开位置移动到关闭位置时，分度棘爪使紧固件前进并使其与进给棘爪工作啮合。

The indexing pawl advances a fastener into operative engagement with the feed pawl upon movement of the second canister portion from the open position to the closed position.

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