如果使用得当，避孕套是很有效的避孕手段。Condoms are an effective method of birth control if used with care.服务项目包括避孕建议和健康检查，并且免费提供。The service covers contraceptive advice and health checks, and is available free.服用避孕药是最有效的避孕方法。The pill is th...
介绍一种微伏信号放大系统设计方法, 该系统主要由放大 、 滤波以及隔离输出三部分组成.Introduced a design of microvolt signal amplifier, which consists of amplifiers, filters and isolation.如果伏特作单位太大, 我们可用毫伏或微伏.Where the volt is too large a unit, we use the milliv...
潘登尼斯少校成了贝衮的心腹和家中的亲密朋友.Major Pendennis became the Begum's confidant and house friend.将军不再把他当作心腹了, 不再给他讲大道理了.The General no longer confided in him, no longer lectured him.她们在一起一谈就谈到很久,把什么心腹话都说出来.They had long gossips ...
与其说是游泳池,倒不如说它更象一条河湾.It was more like the bend of a river than a bath.过渡段浅滩发生在连续河湾之间.Crossing bars occur between successive bends.我们也认识到在河湾内控制影响的多样性和复杂性.We also recognize the diversity and complexity of controlling in flu...
The city has been flattened by heavy artillery bombardments.城市已被猛烈的炮火夷为平地。Enemy forces lobbed a series of artillery shells onto the city.敌军对该城发起连串炮轰。Some of those artillery pieces look a little elderly.那些大炮中有些看起来有点老掉牙了。...