Possessing good properties for damp - proof , dustproof and shocking resistance.具有良好的防潮 、 防尘、抗冲击性能.Understand sex of wind daylighting standard, dustproof and anticorrosive eliminate a gender.通风采光标准性, 防尘防腐消除性.Manufacturin...
Understand sex of wind daylighting standard, dustproof and anticorrosive eliminate a gender.通风采光标准性, 防尘防腐消除性.Possessing good properties for damp - proof , dustproof and shocking resistance.具有良好的防潮 、 防尘、抗冲击性能.Manufacturin...
AID or artificial insemination by a donor他精人工授精In animal breeding, especially cattle - breeding, artificial insemination is now widely used.在动物生育, 特别是牛的生育中, 人工授精已经广泛使用.These cases particularly recommend themselves to tre...