For Droujkova, high-level math is important, and what it could use in American classrooms is an injection of childlike wonder.

对于杜洛埃科娃来说，高水平的数学很重要，可以在美国课堂上引起孩子们的好奇心。

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The noise from injection and bubbling has the character of wide frequency band and high noise level.

喷注与鼓泡产生的噪声具有频带宽、声压级较高的特征。

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Double tunnel junctions have been used to investigate the properties of superconducting Pb films under quasiparticle injection. At high injection level an inhomogeneous gap state was observed.

用两个重叠的铅隧道结进行实验，当注入电流很大时在铅膜中观察到了非均匀能隙态，铅膜中出现非均匀态的功率阈值比铝膜大得多。

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If the HCG level remains high, you might need another injection of methotrexate.

CNN: Ectopic pregnancy