久久国产欧美日韩精品,日韩国产精品久久久久久亚洲,99视频精品全部免费免费,91精品国产综合久久走光

這種機(jī)器有兩種可調(diào)的速度: 快速和慢速.This machine has two settings: fast and slow.支承中心應(yīng)做成可調(diào)的.The center of support should be made adjustable.該行程可借助可調(diào)的止動(dòng)螺釘加以限位.The stroke may be limited by adjustable stops....

“可調(diào)的”的英語可以翻譯為：tunable ...