A hyperbola approaches but does not meet its asymptote.双曲线逐渐接近它的渐近线但不相交.An asymptote is a line or curve that approaches a given curve arbitrarily closely.所以渐近线也可能是一条曲线.不过方便起见我们都讨论渐近“线”.He and the design firm Asymptote co...
Getter - ion pumps decrease chamber pressure by chemical reaction of residual gases with an evaporated metal.吸气离子泵通过剩余气体与蒸发的金属之间的化学反应减少了内腔的压力.Recent electronic means of pumping using low temperature sorption techniques a...
The collision took place in the busiest shipping lanes in the world.撞船事故发生在全世界最繁忙的航道上。Approaching cars will be routed into two lanes.驶来的车辆会分流到两条车道。John drove homeward through the lanes.约翰驱车穿过小巷向家驶去。...
Athletics'anti - dope campaigners are faced with a credibility problem.田径运动的 反 兴奋剂倡道者面临信誉问题.to dope a horse给马注射麻醉剂Athletics’ anti-dope campaigners are faced with a credibility problem.田径运动的反兴奋剂倡道者面临信誉问题。The media pe...
"I think I hear the telephone ringing."—"Okay, I can take a hint."“我想我听到电话铃在响。”——“好的，我明白你的意思了。”Amy woke up to the sound of her doorbell ringing.随着门铃叮当作响，埃米醒来了。She was ringing up her sale on an ancient cash register.她正用一台...