“需要量”造句

这种书需要量很大.
There is a great demand for such books.

输血的需要量应根据血球压积来确定.
The blood requirements should be determined by the hematocrit.

电视机和立体声音响设备现在的需要量很大.
Television sets and stereo sound sets are now in great demand.

• #需要量