发动机油不能被清理到下水道中。Engine oil cannot be disposed of down drains.下水道严重堵塞。The drains are badly clogged up.下水道发出一股说不出的恶臭。The stench from the sewer is indescribable....
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.In the control system of new d...
It's simple to make . it doesn't take a rocket scinetist to make an agreement between us.这很容易做到. 我们之间达成一致并不困难.We can make an agreement: making sincere friends , separating after graduation without keeping in to...