worm drive
蜗杆
蜗杆驱动
蜗杆传动
蜗轮传动
蜗杆转动
写一读多驱动机
bottom water drive type reservoir
Transmission of Mul-ti-Head Worm and Worm Wheel
band to band transition
fish bone type explosion type
herpes simplex type I and type II
influenza viruses type A and type B
Kunlun type and Himalayan type
quartz vein type and altered rock type gold deposit
red land type and carlin type gold deposits
Rh blood type Rhesus blood type
Structure and type of Furnace type
type 1 helper and type 2 helper T cells
type Ⅰ and type Ⅲ collagen
Type Ⅰ and type Ⅲ procollagen mRNAs
Type A and type B infectious diseases