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- Chapter 2 presents the first quasi-simultaneous multi-frequency (2.3, 5.0, 8.4 and 15.4GHz) VLBI observations of the Compact Steep Spectrum (CSS) source 3C 138, and the fast-switching phase-reference observation was used only at 15.4GHz. 第二章研究致密陡譜源3C 138 的第一次多頻(2.;3、5
- Simulations show by this method we can precisely estimate time delay for narrow band and line spectrum source in low SNR. 通過(guò)計算仿真結果證明這種方法對低信噪比下窄帶和單頻信號具有較高時(shí)延估計精度。
- There was a steep climb on the road out of town. 市外公路上有一處很陡的上坡路。
- Do you think you can climb that steep cliff? 你以為你能爬上那座懸崖峭壁嗎？
- The Chandra Observations of the Flat Spectrum Source NGC 526A “平譜源”NGC526A的Chandra觀(guān)測(英文)
- Let the tea leaves steep in boiling water for five minutes. 讓茶葉在滾開(kāi)的水中浸泡五分鐘。
- The news comes from a reliable source. 這消息來(lái)自可靠的來(lái)源。
- That overloaded truck jibbed at the steep hill. 那輛超載的卡車(chē)爬不上陡坡。
- The climber had to negotiate a steep rock face. 那攀登者得攀越一陡峭巖石。
- The mountain rise up in a steep wall of rock. 這座山高而陡，形成一道巖石屏障。
- The mountain rose up in a steep wall of rock. 這座山高而陡，形成一道巖石屏障。
- They climbed the steep mountain inch by inch. 他們一點(diǎn)一點(diǎn)地攀上那座陡峭的山。
- The bus toiled up the steep hill. 公共汽車(chē)艱難地爬上陡峭的山崗。
- Our car stalled on the brow of a steep hill. 我們的汽車(chē)在山頂陡坡處拋錨了。
- The survey covered a broad spectrum of topic. 這本簡(jiǎn)史涉及的話(huà)題范圍很廣。
- We were winded by the steep climb. 我們爬那個(gè)陡坡累得上氣不接下氣。
- My wages are the principal source of my income. 薪金是我收入的主要來(lái)源。
- I wouldn't pay 300 for his old car it's too steep. 我才不花300英鎊買(mǎi)他那輛舊汽車(chē)呢--這個(gè)價(jià)錢(qián)太高了。
- Solar energy is a new kind of source of energy. 太陽(yáng)能是一種新型能源。
- This hill is too steep to ride up on a bicycle. 這山太陡了，騎自行車(chē)可上不去。
