Interstitial brachytherapy, the placement of the isotope into a tumor bed where no lumen exists, has been described but is utilized infrequently in clinical practice.
填隙近距离，安置同位素成肿瘤床没有管腔存在，已被描述，但很少使用在临床实践中。
The respective trace of rock bed, vein must be utilized usually in the study on a fault except the complicated fault, such as deep and big fault.
除了深、大断裂等复杂断层以外，研究一般断层都需利用岩层、岩脉等各自的迹线。迹线的产状实质上是空间二斜面相交线的产状，属于立体几何学等数学范畴。
Sihe mine is endowed with rich coal bed methane resources. The concentration of recovered underground gas is high, and the gas can be utilized for many purposes.
晋城寺河煤矿煤层气资源丰富，井下抽采煤层气的浓度高，可作为多种用途。
Sihe mine is endowed with rich coal bed methane resources. The concentration of recovered underground gas is high, and the gas can be utilized for many purposes.
晋城寺河煤矿煤层气资源丰富，井下抽采煤层气的浓度高，可作为多种用途。
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