luscious silks and velvets柔软光滑的丝绸和天鹅绒A series of knitting technologies are introduced in regard to plain, striped and fancy elastic velvets.文中介绍了平纹弹力丝绒 、 条纹弹力丝绒和花式弹力丝绒的编织工艺.Silks and satins, scarlets and velvets, put out...
They sediment toward the bottom of the centrifuge tube at a velocity.它们以某一速度向管底方向沉降.The nitrocellulose and water slurry was transferred to a centrifuge.把硝化棉和水的浆液转移到离心机中.After cooling, the emulsion flows into a centrifuge...
The success of wind power represents a litmus test for renewable energy.风能作为动力的成功是对可再生能源一次立见分晓的检验。unsized paper treated with litmus未定尺寸经石蕊处理的纸Litmus paper can be used as an indicator of the presence of acid in a solution...
The hummingbird is the only bird that can fly backward.蜂鸟是唯一能倒退向后飞的鸟.The wings of a bee and those of a hummingbird are analogous.蜜蜂的翅膀和蜂雀的类似.The hummingbird perches on a twig of the hawthorn.小蜂鸟栖在山楂树枝上.A hummingbird is p...