What is the focal length of a plane mirror? What kind of image is formed by the lenses of the glasses worn by a 68-year-old male who sees an object 2 m away? The focal length (cm) of the glasses worn is -50. What is refraction of light in lenses? What is an example of a ...
I was surprised at just the number of pieces that come with this eyeglass frames repair kit. There are thirteen different kinds of screws that come in a small and compact case. With the many different sizes of screws, I am almost certain that this is useful in repairing almost all brands ...
I always check the prices of different brands before I make a major purchase. 我在大批购买之前总会比较不同品牌的价格。 The drug affects different people in different ways. 这种药的疗效因人而异。 The word can have completely different meanings depending on the context. 根据上下文,这个词可以有完...
310131 甘蔗渣(原料) Bagasses of cane [raw material] 310132 鱼饵(活的) Fishing bait, live 310138 宠物食品 Pet food 310141 动物可食用咀嚼物 Edible chews for animals 310142 宠物饮料 Beverages for pets 310143 动物食用鱼粉 Fish meal for animal consumption 310150 动物食用亚麻籽 Linseed for...