(1) Lop Nur and Turpan Basin are located in the northwest of China, and the annual precipitation in Toksun in the west of Turpan Basin is only 5.9mm, which is the place with the least precipitation in China.

(2) Lop Nur and Turpan Basin are located inland and blocked by mountains, so it is difficult to reach the summer monsoon rich in water vapor. The lack of precipitation and arid climate in the vast northwest region are also the main reasons for the vast desert area;

(3) Huoshaoliao in Taiwan Province Province is located on the east side of the mountain range in Taiwan Province Province, with the windward slope of the southeast monsoon and abundant precipitation, so it is called "the rain pole of China".

So the answer is: (1) Lop Nur area and Turpan basin are located in the northwest of China; (2) Lop Nur and Turpan Basin are located inland and blocked by mountains, so it is difficult to reach the summer monsoon rich in water vapor. The lack of precipitation and arid climate in the vast northwest region are also the main reasons for the vast desert area; (3) Huoshaoliao in Taiwan Province Province is located on the east side of the mountain range in Taiwan Province Province, with the windward slope of the southeast monsoon and abundant precipitation, so it is called "the rain pole of China".