这些现代建筑材料的流畅型线条与布满铜绿的老线杆相映成趣。
This contemporary construction material gives a nice contrast of sleek lines to the patina of the old timber.
从中优选出“原油清管加油溶性化学清洗剂”的清洗方法，完全满足了克独老线清洗的要求。
Among the methods, the one with chemical cleaning solution which is oil soluble can satisfy the requirements for the old Ke-Du Pipeline cleaning.
对老线普通结晶器铸造和新线低液位铸造所得5083合金扁锭进行了质量对比，分析了两种铸锭性能差异的原因。
The quality from old ordinary mould casting and new low liquid level casting of 5083 alloy flat ingot is compared. The reasons of the two casting methods flat ingot different quality are analysed.
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