æ°´é»çæ大ç´å¾æ250mmï¼æ°´é»çè§æ ¼æå¾å¤ç§ï¼DN50ãDN75ãDN100ãDN150ãDN200ã
æ°´é»æ ¹æ®åºé¨çå½¢ç¶å¯ä»¥å为å°åºé»åå¹³åºé»ä¸¤å¤§ç±»ï¼æç §å°é¢å½¢ç¶åç±»å¯å为ï¼æ®éé»ãå¼å½¢é»ãå¼å½¢é»çå¤å½¢åå¯ä»¥å为è±å½¢é»ï¼é©¬ç¼ç³ï¼ã梯形é»ãå«æç³ãæ°´æ»´å½¢é»ãæ¤åå½¢é»ãå «è§å½¢é»çãä¸è¬çæ°´é»æå «ä¸ªåé¢ï¼æ°´é»èé¢æ¯éä¸çä¸å±æ°´é¶ç®ãéè¿åé¢çèå ï¼ä½¿å®æå¾å¥½ç亮度ï¼åé¢è¶å¤ï¼äº®åº¦å°±è¶å¥½ï¼æ½åæ´ä¸å¥æ¯ç¬¬ä¸ä¸ªåç°æ°´æ¶ç»çåé¢ç人ã
ç§ç±»ç¹å¾
å¾å¤æåå¨è´ä¹°é¥°åçæ¶åï¼ç»å¸¸ä¼å¬å°âæ°´é»âè¿ä¸ªè¯ï¼å¤§æ¦ææé½æç½å°±æ¯ä»¿é»ç³ãå ¶å®æ°´é»åªæ¯å¯¹ä»¿é»ç³çç»ç§°ï¼èæ°´é»åæ¯æå¾å¤åºåçãä¸é¢ä»ç»çå°±æ¯å¤§å®¶å¨å¸é¢ä¸é常ä¼è§å°çâæ°´é»âçç§ç±»ï¼
1ãç»çï¼ç¨ç»ç磨æçåé»ç³å¾å®¹æåºå«ï¼å 为å®çæå çä½ï¼æ²¡æçé»ç³é£ç§éªçç彩è²å èï¼ç¨æç»éªç人ä¸ç便ç¥ãèè¿ç§âæ°´é»âç»å¸¸ç¨äºæ¯è¾å»ä»·ç饰åä¸ã
2ã人é å°æ¶ç³ï¼å®ç¼ºå°é»ç³éªçç彩è²å èï¼å°å®æµ¸å ¥äºç¢ç²ç·ä¸ï¼å ¶è½®å»ä¼æ¨¡ç³ãèçé»ç³çè½®å»åååæ¸ æ¥ã
3ã人é èå®ç³ï¼æ è²éæç人é èå®ç³å¨ç¢ç£¨åä¹å¯ä½ä¸ºé»ç³ç代ç¨åãä½å®å¨âäºç¢ç²ç·âä¸å ä¹æ¶å¤±ä¸è§ï¼èçé»ç³çè¾¹ç¼æé»ï¼éå¸¸æ¸ æ¥ã