| Tech |
1980s |
1990s |
2000s |
Issues |
| |
|
|
|
|
¹ü¿ë
±Ý¼Ó¼ÍÇü
±â¼ú°ú ½Ã¼³ |
|
 |
Èİ¡°øÀÇ ÃÖ¼ÒÈ |
 |
1,000Åæ¿¡¼ 90,000Åæ±Þ
ÃʰíÇÏÁß ÇÁ·¹½º |
|
Ãʰí¾Ð·Â
°ü·Ã
±â¼ú°ú
ÀåºñÁ¦ÀÛ |
|
 |
¼ºÇüÇÁ·¹½ºÀÇ ¾ÈÁ¤¼º°ú °ß°í¼º |
 |
ÃÖ´ë 55,000bar ±Þ
Ãʰí¾Ð·Â »ý¼º |
|
Ư¼ö Á¡Áø¼ºÇü
±â¼ú°ú ½Ã¼³Á¦ÀÛ
|
|
 |
Á¡Áø¼ºÇü °øÁ¤ÀÇ ´Ù¾çÈ ¹×
´ë·® »ý»êÈ |
 |
¼ºÇü½Ã º¸´Ù ÀûÀº ÇÏÁßÀÇ ÀÌ¿ë |
|
¼Ò¼º°¡°ø °øÁ¤ÀÇ
ÄÄÇ»ÅÍ ÇØ¼® ±â¼ú |
|
 |
ÇØ¼®ÀÇ Á¤È®¼º°ú ½Å·Ú¼º |
 |
µ¿½Ã°øÇÐ |
 |
½Å¼ÓÇÑ ÇØ¼® ´ëÀÀ |
|