Result: Theres spastic significance between the two groups of operation signs.

比较两组手术各项指标。结果：两组的术中、术后各项指标差异大多有统计学意义。

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In this paper, the definition and connotation of on-site earthquake rescue operation signs are described, and classification, design and operation requirements of the signs are discussed.

探讨了地震灾害现场救援行动标识的分类、设计以及使用要求。

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Tissue that is removed during the operation is checked for signs of malignancy.

手术过程中切除的组织用于诊断疾病是否为恶性。

《柯林斯英汉双解大词典》

The operation involved magnetic signs for their vans and staff in logoed T-shirts, running seven or eight differently-named firms.

BBC: Fraud gang must repay more than ?415,000 after scams

At a site 50 miles from Chengdu, the Sichuan capital, a dramatic rescue operation took place when signs of life emerged from a flattened factory.

NPR: Search for Victims Turns Up a Quake Survivor

"Early signs are that the operation was routine and Andrew will begin his rehabilitation accordingly, " an ECB statement read.

BBC: SPORT | Cricket | England | Flintoff undergoes ankle surgery