họ chỉ mua số lượng ít

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Kết quả (Anh) 1:

they only buy a small amount

Kết quả (Anh) 2:

The residual O3, NO, and NO2 concentrations produced by the C0- C3-benzenes after pulsed bipolar plasma-catalytic reactions over the La 0.7 Sr 0.3 MnO3/Mullite Catalyst Show in Fig. 7. The residual O3 concentration produced increase regularly as the amount of methyl groups in aromatic limiting increases, but that of NO and NO2 are just the opposite orderly. These results are similar to that in Fig. 5, but the amount of residual ozone after the plasma catalysis of each aromatic reactant is much higher than that of each n-alkane. It may be attributed to the higher electron density in benzene ring that is more conducive to the forming of ozone in plasma discharge. Thus, the reactivities of the aromatic limiting in plasma catalysis are higher than that of the N-alkanes. ...

Kết quả (Anh) 3:

They only buy small numbers.