\begin{table}%t1 \caption{\label{table1}Stellar parameters and elemental abundances of the sample stars.} %\centerline {\small \begin{tabular}{lrrrrrrrrr} \hline\hline\noalign{\smallskip} Star & $T_{\rm eff}$ & $\log g$ & $v \sin i$ & $Y_{\rm S}$ & $\varepsilon$~(C)\tablefootmark{1} & $\varepsilon$~(N) & $\varepsilon$~(O) & $\varepsilon$~($\sum{\rm CNO}$) & $M/M_\odot$ \\ & (K) & (cgs) & (km~s$^{-1}$)& (by mass)\\ \hline \multicolumn{3}{l}{B-type main-sequence stars:}\\ \object{HD~36591} & $27~000 \pm 300$ & $4.12 \pm 0.05$ & $12 \pm 1$ & $0.28 \pm 0.03$ & $8.33 \pm 0.08$ & $7.75 \pm 0.09$ & $8.75 \pm 0.11$ & $8.92 \pm 0.07$ & 13\\ \object{HD~61068} & $26~300 \pm 300$ & $4.15 \pm 0.05$ & $14 \pm 2$ & $0.28 \pm 0.03$ & $8.27 \pm 0.07$ & $8.00 \pm 0.12$ & $8.75 \pm 0.09$ & $8.93 \pm 0.06$ & 12\\ \object{HD~63922} & $31~200 \pm 300$ & $3.95 \pm 0.05$ & $29 \pm 4$ & $0.25 \pm 0.03$ & $8.34 \pm 0.08$ & $7.77 \pm 0.08$ & $8.79 \pm 0.10$ & $8.95 \pm 0.07$ & 19\\ \object{HD~74575} & $22~900 \pm 300$ & $3.60 \pm 0.05$ & $11 \pm 2$ & $0.28 \pm 0.03$ & $8.37 \pm 0.10$ & $7.92 \pm 0.10$ & $8.80 \pm 0.08$ & $8.98 \pm 0.06$ & 12\\ \object{HD~122980} & $20~800 \pm 300$ & $4.22 \pm 0.05$ & $18 \pm 1$ & $0.28 \pm 0.03$ & $8.32 \pm 0.09$ & $7.76 \pm 0.08$ & $8.72 \pm 0.05$ & $8.90 \pm 0.04$ & 8\\ \object{HD~149438} & $32~000 \pm 300$ & $4.30 \pm 0.05$ & $4 \pm 1$ & $0.28 \pm 0.03$ & $8.30 \pm 0.12$ & $8.16 \pm 0.12$ & $8.77 \pm 0.08$ & $8.97 \pm 0.06$ & 17\\ \multicolumn{3}{l}{BA-type supergiants:}\\ \object{HD~13476} & $8500 \pm 150$ & $1.40 \pm 0.10$ & $12 \pm 2$ & $0.36 \pm 0.08$ & $8.18 \pm 0.11$ & $8.58 \pm 0.04$ & $8.63 \pm 0.06$ & $8.98 \pm 0.03$ & 16\\ \object{HD~14433} & $9150 \pm 150$ & $1.40 \pm 0.10$ & $17 \pm 3$ & $0.32 \pm 0.07$ & $8.23 \pm 0.04$ & $8.23 \pm 0.03$ & $8.67 \pm 0.05$ & $8.91 \pm 0.03$ & 19\\ \object{HD~34085} & $12~100 \pm 150$ & $1.75 \pm 0.10$ & $25 \pm 3$ & $0.32 \pm 0.04$ & $8.23 \pm 0.09$ & $8.47 \pm 0.06$ & $8.75 \pm 0.05$ & $9.01 \pm 0.03$ & 23\\ \object{HD~87737} & $9600 \pm 150$ & $2.00 \pm 0.10$ & $2 \pm 2$ & $0.37 \pm 0.03$ & $8.25 \pm 0.06$ & $8.52 \pm 0.08$ & $8.73 \pm 0.06$ & $9.02 \pm 0.04$ & 10\\ \object{HD~92207} & $9500 \pm 200$ & $1.20 \pm 0.10$ & $30 \pm 5$ & $0.35 \pm 0.06$ & $8.33 \pm 0.08$ & $8.25 \pm 0.04$ & $8.79 \pm 0.07$ & $9.00 \pm 0.04$ & 27\\ \object{HD~111613} & $9150 \pm 150$ & $1.45 \pm 0.10$ & $17 \pm 2$ & $0.35 \pm 0.05$ & $8.29 \pm 0.10$ & $8.46 \pm 0.04$ & $8.73 \pm 0.04$ & $9.01 \pm 0.03$ & 17\\ \object{HD~187983} & $9300 \pm 250$ & $1.60 \pm 0.15$ & $15 \pm 6$ & $0.32 \pm 0.05$ & $8.29 \pm 0.09$ & $8.19 \pm 0.04$ & $8.78 \pm 0.02$ & $8.98 \pm 0.02$ & 15\\ \object{HD~195324} & $9200 \pm 150$ & $1.85 \pm 0.10$ & $3 \pm 3$ & $0.38 \pm 0.06$ & $8.10 \pm 0.11$ & $8.70 \pm 0.08$ & $8.73 \pm 0.04$ & $9.07 \pm 0.04$ & 11\\ \object{HD~197345} & $8700 \pm 150$ & $1.20 \pm 0.10$ & $10 \pm 9$ & $0.37 \pm 0.04$ & $8.09 \pm 0.07$ & $8.56 \pm 0.07$ & $8.69 \pm 0.04$ & $8.99 \pm 0.03$ & 22\\ \object{HD~202850} & $10~800 \pm 200$ & $1.85 \pm 0.10$ & $14 \pm 5$ & $0.38 \pm 0.06$ & $8.16 \pm 0.04$ & $8.70 \pm 0.06$ & $8.76 \pm 0.05$ & $9.09 \pm 0.03$ & 15\\ \object{HD~207673} & $9250 \pm 100$ & $1.80 \pm 0.10$ & $1 \pm 2$ & $0.33 \pm 0.08$ & $8.17 \pm 0.09$ & $8.48 \pm 0.03$ & $8.72 \pm 0.04$ & $8.99 \pm 0.03$ & 12\\ \object{HD~210221} & $8400 \pm 150$ & $1.40 \pm 0.10$ & $0 \pm 0$ & $0.34 \pm 0.03$ & $8.22 \pm 0.06$ & $8.52 \pm 0.06$ & $8.70 \pm 0.05$ & $9.00 \pm 0.03$ & 15\\ \object{HD~212593} & $11~200 \pm 200$ & $2.10 \pm 0.10$ & $6 \pm 2$ & $0.35 \pm 0.05$ & $8.30 \pm 0.08$ & $8.44 \pm 0.06$ & $8.74 \pm 0.04$ & $9.01 \pm 0.03$ & 12\\ \object{HD~213470} & $8400 \pm 150$ & $1.30 \pm 0.10$ & $13 \pm 1$ & $0.32 \pm 0.07$ & $8.17 \pm 0.08$ & $8.54 \pm 0.04$ & $8.65 \pm 0.03$ & $8.97 \pm 0.02$ & 18\\ \hline \end{tabular}} \tablefoot{\tablefoottext{1}{$\varepsilon~(X)$~$=$~$\log$~$X$/H~+~12.}} \end{table}