According to the feature of SLS, the parameters of interest are layer thickness, hatch spacing, laser power, scan speed, work surroundings temperature, interval time and scanning mode.

根据SLS加工工艺的特点，研究的工艺参数包括：层厚、扫描间距、激光功率、扫描速度、环境温度、层与层之间的加工时间间隔和扫描方式。

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The fermentation speed of the immobilized yeast cell by hatch and continuous is 24% higher and more than 8 times than that of the free cell by batch fermentation respectively.

固定化酵母细胞分批和连续发酵，分别比传统的游离酵母分批发酵效率提高24％和8倍以上。

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The FDA had this power under the 1984 Waxman-Hatch law, designed to speed up drug approvals.

FORBES: Delaying tactics