ÌâÄ¿ÄÚÈÝ
¡¾ÌâÄ¿¡¿Ð¡Ã÷ÔÚ¡°Ì½¾¿¸Ü¸ËµÄƽºâÌõ¼þ¡±ÊµÑéÖУ¬ËùÓõÄÆ÷²ÄÓУº¸Ü¸Ë¡¢Ö§¼Ü¡¢µ¯»É²âÁ¦¼Æ¡¢¿Ì¶È³ß¡¢Ï¸ÏߺÍÖÊÁ¿ÏàͬµÄ¹³ÂëÈô¸É¸ö£®
£¨1£©ÊµÑéÇ°£¬½«¸Ü¸ËÖеãÖÃÓÚÖ§¼ÜÉÏ£¬µ÷½ÚƽºâÂÝĸ£¬Ê¹¸Ü¸Ëˮƽƽºâ£»ÊµÑéÖУ¬Ê¹¸Ü¸ËÔÚˮƽλÖÃƽºâ£¬ÕâÑù×öµÄºÃ´¦ÊDZãÓÚÔڸܸËÉÏÖ±½Ó²âÁ¿ £®
£¨2£©ÊµÑé¹ý³ÌÖУ¬½«¹³ÂëÐü¹ÒÓÚͼÖÐAµã£¬±£³Ö×èÁ¦¡¢×èÁ¦±Û²»±ä£¬ÔÚÖ§µãOÓҲ಻ͬλÖã¬Óõ¯»É²âÁ¦¼ÆÊ©¼ÓÊúÖ±ÏòϵÄÀÁ¦£¨¶¯Á¦£©£¬Ê¹¸Ü¸Ëˮƽƽºâ£¬²â³öÿһ×鶯Á¦±ÛL1ºÍ¶ÔÓ¦µÄ¶¯Á¦F1£¬²¢¼Ç¼ÔÚ±íÖУ®Çë¸ù¾Ý±íÖÐÊý¾Ý£¬ÔÚ×ø±êϵÖлæÖƳöL1ÓëF1µÄͼÏ󣬸ù¾ÝͼÏóÖÐʵÑéÊý¾Ý¿ÉÖª£¬µ±L1Ϊ0£®5mʱ£¬F1Ϊ N£®
´ÎÊý | ¶¯Á¦F1/N | ¶¯Á¦±ÛL1/cm |
1 | 0£®75 | 0£®40 |
2 | 1£®0 | 0£®30 |
3 | 1£®5 | 0£®20 |
4 | 2£®00 | 0£®15 |
5 | 3£®0 | 0£®10 |
£¨3£©ÊµÑéÖÐСÃ÷·¢ÏÖ£¬±£³Ö¸Ü¸Ë´¦ÓÚˮƽƽºâ£¬µ±µ¯»É²âÁ¦¼ÆµÄÀÁ¦·½ÏòÆ«ÀëÊúÖ±·½Ïòʱ£¬µ¯»É²âÁ¦¼ÆµÄÀÁ¦»á±ä´ó£¬ÔÒòÊÇ £®
¡¾´ð°¸¡¿£¨1£©Á¦±Û£»£¨2£©ÈçÉÏͼËùʾ£»0£®6£»£¨3£©ÀÁ¦µÄÁ¦±Û±äС
¡¾½âÎö¡¿
ÊÔÌâ·ÖÎö£º£¨1£©¸Ü¸ËÔÚˮƽλÖÃƽºâʱ£¬Á¦µÄ·½ÏòÓë¸Ü¸Ë´¹Ö±£¬Á¦±Û¿ÉÒԴӸܸ˱ê³ß¿Ì¶ÈÉÏÖ±½Ó¶Á³öÀ´£»
£¨2£©¸ù¾Ý±í¸ñÖÐÊý¾Ý½øÐÐÃèµã£¬²¢ÓÃƽ»¬µÄÇúÏßÁ¬½ÓÆðÀ´£¬ÈçͼËùʾ£º
´ÓͼÏóÉ϶Á³öÒ»×éÊý¾Ý£¬µ±¶¯Á¦F1=0£®75Nʱ£¬¶ÔÓ¦µÄ¶¯Á¦±ÛL1=0£®4m£¬
¸ù¾Ý¸Ü¸ËƽºâÌõ¼þ£¬×èÁ¦Óë×èÁ¦±ÛµÄ³Ë»ý£ºF2L2=F1L1=0£®75N¡Á0£®4m=0£®3Nm£¬
¸ù¾ÝÌâÒâ¿ÉÖª£¬×èÁ¦Óë×èÁ¦±ÛµÄ³Ë»ý±£³Ö²»±ä£¬ËùÒÔ£¬µ±L1Ϊ0£®5mʱ£¬Ôò£»
£¨3£©±£³Ö¸Ü¸Ë´¦ÓÚˮƽƽºâ£¬µ±µ¯»É²âÁ¦¼ÆÇãбÀ¶¯¸Ü¸Ëʱ£¬ÀÁ¦µÄÁ¦±Û±äС£¬µ«ÊÇ×èÁ¦ºÍ×èÁ¦±Û¾ù²»±ä£¬¸ù¾Ý¸Ü¸ËƽºâÌõ¼þ¿ÉÖª£¬µ¯»É²âÁ¦¼ÆµÄÀÁ¦»á±ä´ó¡£
![](http://thumb2018.1010pic.com/images/loading.gif)