在茜素染料法中,氟化物的消色作用较慢.The bleaching action of fluorides is slow in the alizarin dye procedure.茜素一种桔红色的晶体化合物, C14H6O2 ( OH ) 2, 用于制造染料.An orange - red crystalline compound, C 14 H 6 O 2 ( OH ) 2, used in making dyes.'茜&...
The "flywheel" battery, it is said, could power an electric car for 600 miles on a single charge.据说“飞轮”电池充电一次就能驱动电动汽车行驶600英里。Flywheel is an important executive component of satellite attitude control system.飞轮是卫星姿态控制系统的关...