直筒杯
参考答案：
瓷杯类最早的一种式样，直筒形，内外壁施釉，内壁有数道弦纹。常见于江西、浙江、江苏等地东周遗物的青瓷器中。
Quantities of water________for cooling in the only one of the plants that________steel. [ ]
A. has been needed; produces
B. are needed; produces
C. is needed; produce
D. have been needed; produce
止推轴承的判废标准是什么？
one of the plants that________steel. [ ]