短語詞組短語double envelope hourglass worm gearing 二次包絡環(huán)麪蝸桿副傳動double enveloping hourglass worm gearing 平麪二次包絡環(huán)麪蝸桿Planar Enveloping Hourglass Worm Gearing 平麪包絡環(huán)麪蝸桿傳動The double -enveloping hourglass worm gearing 平麪二次包絡環(huán)麪蝸桿傳動plane re -enveloping hourglass worm gearing 平麪二次包絡環(huán)麪蝸桿傳動Double -enveloping hourglass worm gearing 二次包絡環(huán)麪蝸桿傳動 返回 hourglass worm gearing