A new phosphating technology to meet the latest requirement of automakers is introduced, and the future development trend of zinc salt phosphating is discussed.
介绍了一种全新的能够满足汽车制造商最新要求的磷化技术，并且讨论了锌盐磷化技术的未来发展趋势。
As the development trend of modern oil and gas industry, the requirement of oil and gas recovery becomes higher and higher with the increasing social dependence and demands on energy.
从近代石油工业的发展趋势看来，随着社会对能源依赖性以及需求量逐渐加大，人们对油气藏的开采要求也越来越高。
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