所有的指示标志和公告都被译成了英语和西班牙语。All the signs and announcements were rendered in English and Spanish.因特网是世界上最大的计算机公告系统。The Internet is the largest computer bulletin board in the world.候车室的公告牌要求人们不要吸烟和随地吐痰。Notices in the waiting r...
Use reducer special for plastic extruder with alloy hard - toothed surface.采用合金硬齿面塑料挤出机专用减速机.This article introduces simulation analysis methods of twin - screw extruder.本文介绍了双螺杆挤压机的模拟分析的方法.The exsolution chamber and the...