首先要镗孔，然后安装尾轴管，接下来装炮铜或白合金制的轴承套，也叫轴承。
First you need the boring for the shaft, then install the stern tube into the stern frame, next fit the gun-metal or white-metal bush.
为此，提出了利用制酸厂的制酸废热，应用逆流式处理工艺回收制酸尾料中的铁。
It is proposed to use the waste heat from the acid-making process to recover the iron in the acid-making tailing by a countercurrent process.
蒸汽裂解试验显示尾油馏分是很好的蒸汽裂解制乙烯原料，其乙烯收率较大庆ago高2 ~ 3个百分点。
The unconverted oil was a good feedstock for steam cracking and its ethylene yield was 2%-3% higher than that of Daqing AGO feedstock.
应用推荐