The utility model relates to the improvement on a manhole cover with an iron skeleton concrete structure.
本实用新型是对铁骨架混凝土结构下水道井盖的改进。
Investigations in that case exposed a flimsy skeleton of iron wires being used instead of steel to hold together the building.
调查发现,建造大楼的钢筋结构,被偷换成了脆弱的铁丝。
When said catalyst is used for making Fischer-Tropsch synthesis reaction, as compared with skeleton iron it possesses high activity and selectivity.
该催化剂用于费托合成反应时,具有比骨架铁高的活性和选择性。
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