田纳西河主要靠大气降水补给,多山,地形起伏大---(河道状况)河道狭窄、落差大,田纳西河进入枯水期时,因为水位过低,使吨位大的船只不能通航,将大大影响客、货运量,河道狭窄、落差大,水量不稳定是
田纳西河不利的航运条件和原因
猜你喜欢
- 1“神舟五号”发射成功,人们的表情和心情,可以用一些成语来形容____,______,______.
- 2(2345+3452+4523+5234)÷(2+3+4+5)如何简便运算?
- 3隐函数求导,两边同时对x求导是什么意思?求详解.
- 4I like my school because the teacher are all very friendly."because the teacher are all very
- 5It's time to go to sleep用“for”的形式改写
- 632.4g芒硝溶于150g水中,求溶液的质量摩尔浓度
- 7It's usually hot in__summer here,but in__summer of 1992 it was quite cool.
- 8假定小球在空中下落时受空气阻力恒为重力的0.2倍,小球从一塔顶静止落下3s到地面,塔多高?球着地时速度多大?
- 9Where are you? I am waiting for you
- 10王叔叔买了一套西装,用去600元,其中裤子的价格是上衣的5/7,裤子和上衣各多少元?