To avoid damaging the components of a printed circuit board when testing it with a DC volt-ohmmeter, you should ()
The revision date of a chart is printed on which area of the chart? ()
The buoy symbol printed on your chart is leaning to the northeast. This indicates ().
Chart legends printed in capital letters show that the associated landmark is().
Chart legends printed in capital letters show that the associated landmark is().
Chart legends which indicate a conspicuous landmark are printed in().
收寄国际平常印刷品时,应在规定加盖带有明显的“Printed papers”(印刷品)字样的()戳记。
收寄()时,应在规定加盖带有明显的“Printed papers”字样的红色戳记。