While many chronic conditions develop slowly, changes in lifestyles and behaviours are occurring with a stunning speed and sweep.
许多慢性疾病发展缓慢，但生活方式和行为变化却以惊人的速度席卷全球。
Its muscles are such that it is quits incapableof moving at a speed of over a kilometer an hour even over the shortest distances and the swiftest movement it can make is a sweep of its hooked arm.
她的肌肉不能让他哪怕在很短的距离以内以每小时一公里的速度移动。 它能做的最敏捷的动作就是挥一挥它弯曲的胳膊。
Verification works on vertical deflection sensitivity and horizontal sweep speed of digital oscilloscope are summarized.
总结了数字示波器垂直偏转灵敏度和水平扫描速度的检定工作。
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