英语语法分析

Thus, this paper introduced two kinds of leakage inspection and positioning methods for the dentritic gas pipeline network on the basis of pattern recognition.

为此，介绍两种基于模式识别的枝状燃气管网泄漏检测与定位方法。

Objective: To explore the clinical, pathological and radiological characteristics, diagnosis and differential diagnosis of hepatic follicular dentritic cell sarcoma.

前言：目的：探讨肝脏滤泡树突状细胞肉瘤的临床病理特征，影像学表现，诊断与鉴别诊断。

Conclusion: Hepatic follicular dentritic cell sarcoma is a very rare neoplasm of liver and its diagnosis and differential diagnosis should mainly rely on the immunohistochemical findings.

结论：肝脏滤泡树突状细胞肉瘤罕见，其诊断及鉴别诊断主要依靠免疫组织化学。