The test and analysis conclude that the cracking failure of minimum flow by-pass line of high-pressure lean amine pump in the hydrocracker are caused by sulfur stress corrosion and turbulent flow corrosion, which are aggravated by pipeline vibration.

With crude oil quality deteriorating continuously, acid and sulfur content rising, corrosion of crude oil and its fractions enhanced.

随着原油品质不断劣化，原油含酸、含硫量不断升高，原油及其馏分的腐蚀性进一步增强，由此造成的常减压蒸馏装置腐蚀问题越来越严重。

It pipeline valve selection to choose the anti-sulfur corrosion-resistant materials.

故管线阀门选材要选耐腐蚀的 抗 硫材料.

It is feasible that fuming acid sulfonating technology is substituted by sulfur trioxide sulfonating technology.

用三氧化硫磺化工艺替代发烟硫酸磺化工艺是可行的.

Study hard, and you'll make good progress.

努力学习，你就会取得很大的进步。

To keep an English diary can help you make good progress.

记英语日记会有助于你取得很大的进步。

Nick has made good progress with his studies this year.

今年尼克的学习有了很大进步。

China's carmakers have made good progress towards that goal.

中国汽车制造商已朝着这个目标大步迈进。

The project is making good progress.

工程进展很顺利。

So, I think there is good progress being made there.

所以我认为在那方面正取得不错的进展。

The patient is making good progress after her operation.

这个女病人动过手术后病情大为好转。

Most of the students are making good progress, but Michael is a hopeless case.

大多数学生都很有进步，唯有迈克尔不可救药。

It's remarkable he's made such good progress.

他进步如此大真不简单。

Don't worry, we're making good progress.

别着急，我们有好的进展。

He has made good progress in his job.

他工作上取得很大进展。

He has made such good progress.

他取得了这样大的进步。

The results of the examination show that you have all made good progress.

考试结果说明你们都有很大的进步。

Our military has also made good progress in this regard.

我军在这方面，也取得了许多突破性发展。

In recent years, the development and application of protein chip make a good progress.

最近几年，蛋白质芯片的研究应用获得了突破性的进展。

Good progress was achieved in energy conservation and pollution reduction.

节能减排也取得了良好的进展。

Good progress has been made in the reform of our economic structure and mechanisms.

经济结构和经济体制的改革取得了很好的成绩。