A new process method, using open annulus distributed holes in place of ring trench as the lateral oxidation Windows, is reported to fabricate vertical-cavity surface emitting laser (VCSEL).
采用一种新工艺制作了垂直腔面发射激光器(VCSEL)，即用开环分布孔取代以往的环形沟道作为氧化物限制技术的注入窗口。
In this paper, the polylactic acid is synthesized by two-step method from lactic acid to lactide, then open-ring polymerize to PLA (polylactic acid).
采用二步法由乳酸制备丙交酯，由丙交酯的开环聚合制备高分子量的聚乳酸。
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