The zero point of the density scale is defined by having no specimen in the densitometer.定义密度计内设有样品时的密度为密度尺标的零点.Once again, illustrators exposure sites in order to achieve the optical density at least version 4.00.再不主, 不...
the density of a gas一种气体的密度Mercury has a much greater density than water.水银的密度比水大得多.Astronomers know that Pluto and Triton have nearly the same size, mass, and density.天文学家知道冥王星与海卫一拥有几乎相同的体积、质量与密度。...
The ciliary body is an anterior dilation of the choroid at the level of the lens.晶状体是脉络膜石晶状体平面上向前扩大的部分.The iris is fixed to the ciliary body.虹膜固定在睫状体上.Maintenance of humidity is vital for ciliary function.保持湿度对纤毛功能来说十分重要...
北美的一种草本植物,类似水芹,但叶象艾菊叶.North American herb with bitter - tasting pinnate leaves resembling those of tansy.富含该营养素的天然食物有萝卜 、 洋葱 、 甘蓝 、 水芹.The natural nutrient - rich foods are carrots, onions, cabbage, cress....
The embryo lives in the amniotic cavity.胚胎在羊膜腔中发育。Amniocentesis is the removal of fluid from the amniotic sac.羊膜穿刺术是从羊膜囊抽取羊水的技术.Nursing methods of preserving and making of human amniotic membrane was introduced.并介绍人羊膜的制作...