他们用力拉绳子.They hauled away on the ropes.水手们用力拉笨重的船帆.The crew hauled at the heavy sail.他用力拉了拉吊下来的绳子,看它是不是经得住爬.He pulled at the rope hanging from above to see if it was safe for the climb....
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...
Conclusion Benadryl can prevent nausea, vomiting and itch induced by morphine during patient control vein analgesia.结论 术毕前静脉注射苯海拉明,能有效预防吗啡术后镇痛所致的恶心 、 呕吐和皮肤瘙痒等副反应.After how reducing unripe chilblain to after reducing unri...
Sugar is Fiji's second biggest export earner.糖是斐济第二大出口创汇产品。Tourism is the country's top earner of foreign currency...旅游业是该国外汇创收最多的行业。...a typical wage earner...典型的工薪阶层T-shirts are a nice little earner and it�...