您要查找的是不是：
- Test results indicate colour speed of metabisulfite solution increases as acid valve(pH) dicreases because dicreasing acid valve leads to the solution electric potential moving negatively. 试验表明，焦亚硫酸盐试剂的着色速度随溶液酸度的增加而加快，这是由于酸度增加导致溶液电位的负移。但过量的酸化将使溶液急剧分解，而不能着色。
- The horse forged ahead the lead in the homestretch. 那匹马在最后阶段突然加速跑到前面。
- Shirley will try out for the lead in the play. 雪莉将参加该剧主角的选拔演出。
- Have you turned off the water valve? 你关掉水阀了吗？
- Excessive patriotism can lead to xenophobia. 爱国主义过了头即可导致仇视一切外国人。
- Lead aprons shield people from radiation. 铅做的工作裙可使人免进辐射。
- Graphite is used in making lead pencils. 石墨常被用来做成铅笔。
- We need an eye bolt to fit this valve. 我们需要一个有眼螺栓来固定这个阀门。
- Lead will fuse at quite a low temperature. 铅会在相当低的温度下熔化。
- The team recovered its lead in the second half. 该队在下半场重新领先。
- He soon detected the faulty valve. 他很快查到了出毛病的阀门。
- No road of flowers lead to glory. 没有一条通往光荣的道路是铺满鲜花的。
- Copper has less resistance than lead. 铜的电阻比铅的小。
- I'll take part, but I won't want to lead. 我参加，但不想当领导。
- Alice has the lead in the school play. 艾丽斯在学校演出的戏剧中担任主角。
- We need someone with real vision to lead the party. 我们需要具有真知灼见的人来领导这个党。
- I don't want to lead an inactive life. 我不想过沉闷的生活。
- Where are the dog's collar and lead? 狗的颈圈和皮带哪去了？
- A white lead pigment, sometimes used in cosmetics. 铅白一种白色铅颜料，有时用于化妆品制造
- The pump sucks air out (of the vessel) through this valve. 这台泵通过这个阀门把(容器中的)空气抽出。
