... preliminary fractionator 预分馏塔 preliminary grinding 初磨 preliminary heat treatment 初步热处理 ...
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它的深入研究，将为大口径非球面精磨和初抛光阶段提供一种有效、可靠的定量检测手段。
The further research may provide an effective and reliable quantitative testing method for the exact-grinding and initial polishing of aspheric surfaces.
吾之寂寞犹不及磨溪，风向标、北极星、南风、四月阵雨、正月融雪、新屋初蛛之流。
I am no more lonely than the Mill Brook, or a weathercock, or the North Star, or the south wind, or an April shower, or a January thaw, or the first spider in a new house.
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