negative sweep 中文意思是什麼
negative sweep
解釋
（指機翼或彈翼） 前伸角-
According to the high precision and rotation stability requirement of negative scan unit of cylinder photography typesetting machine, the three levels of cylindrical gears transmission separately, the two - stage cylindrical gears - worm drive, and the worm drive was chosen through calculating its velocity ratio, the checking transmission precision, carrying on the movement precision analysis to the sweep unit, and computing overall transmission error
摘要針對圓筒型照相排版機底片掃描裝置要求傳動精度高，轉動平穩的特點，分別選擇三級圓柱齒輪傳動，雙級圓柱齒輪蝸桿傳動，蝸桿傳動3種常見的傳動方式，計算其傳動比，驗算傳動精度，對掃描裝置進行運動精度分析，計算總體傳動誤差。 -
But it has deficiencies - collection pauses can be long, and the entire heap is visited in the sweep phase, which can have very negative performance consequences on virtual memory systems where the heap may be paged
但是它也有不足收集暫停可能會很長，在清除階段整個堆都是可訪問的，這對于可能有頁面交換的堆的虛擬內存系統有非常負面的性能影響。
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