建立了砂轮的球基渐开螺旋面方程和分度球面螺旋线方程,给出螺旋运动参数、螺旋线导程.The mechanism of grinding internal gear of spherical worm emery - wheel is researched.正圆锥螺旋面是正圆柱螺旋面被同轴正圆锥面截得.The ortho cone helicoid was used interrsect intercept by the ortho con...
Objective To investigate the aetiology, diagnosis, misdiagnosis and therapy of eosinophilic gastroenteritis.目的探讨嗜酸性胃肠炎(EosinophilicGastroenteritis, EG)病因 、 诊断 、 误诊原因、治疗方法.Objective To study the aetiology of both keshan D...
探讨人工耳蜗植入术的有关问题.Objective To explore the problems related to cochlear implantation.双侧人工耳蜗植入术在成人中的主观和客观结果.Subjective and objective results after bilateral cochlear implantation in adults.在目前的研究之中, 可以测量庆大霉素沿着耳蜗的浓度梯度分布.In th...
I was eating ham and Swiss cheese on rye.我正吃夹火腿和瑞士干酪的黑麦面包。Rye is tolerant of poor, acid soils.黑麦耐贫瘠的酸性土壤。By cereals we mean wheat, oats, rye, barley, and all that.谈到谷物,我们指的是小麦 、 燕麦 、 黑麦 、 大麦之类的东西....
烧瓶侧面有刻度标志.The graduations are marked on the side of the flask.把烧瓶放在火上.Put the flask over the fire.满至烧瓶颈部的有机层被抽吸进入原子吸收燃烧器中.The organic layer in the neck of the flask is aspirated into the atomic absorption burner....
a used car mart旧车市场New York is a great mart of the world.纽约是世界的大商业中心.So , Maxi - Mart really makes you wear those things, huh, bro?麦克斯马特真的让你带上那个, 嗯, 老兄?...
So do golfers rate seashore paspalum as a birdie or a bogie?那么打高尔夫球的人对海滨雀稗评价如何 呢 ?They built a dam along the seashore to retain the seawater.他们沿海岸筑起一道堤坝以拦住海水。As we walked along the seashore we saw lots of tiny crabs.我们在海...