Methods the strains were isolated using gradient dilution and streak plate techniques and the activity was determined by Oxford cup method and paper disk method.

方法梯度稀释与划线法分离菌株，并利用牛津杯法和纸片法测定其抗菌活性。

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This paper presents a new method to design the disk CAM with concave follower, and finds the relationship between the new kind of CAM and the formal ones.

找出了凹圆弧底直动从动件盘形凸轮与原有凸轮之间的区别与联系，并统一了原有凸轮的设计方法。

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In this paper, a computational method for coplanar disk-shaped cracks within an elastic infinite body is presented.

本文对于含有圆盘状共面裂纹群的无限体提出了一种计算方法。

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