单词：ratchet effect
ratchet effect的用法和样例：
例句
- A ratchet allows a heavy weight to be raised in short successive stages.棘轮可在简短连续的步骤内就把一个重物抬高。
- Switching between the two games seemed to create a ratchet-like effect.在两个游戏中切换似乎产生了类似棘轮的效应。
单词：ratchet effect 相关文章
By Nancy Steinbach Broadcast: November 19, 2003 This is Phoebe Zimmermann with the VOA Special English Health Report. When scientists want to test the effectiveness of a new drug, they usually divide
VOA2003（下）-环境与健康
His health condition is bound to effect his work. 他的病况一定会影响他的工作。 be bound to指一定，必定，免不了。又如： His laziness is bound to result in his failure. 他的懒惰注定导致他的失败。
蒋健棠英语实用句子
Benjamin Frankin wondered about(at) lightning. He combined his curiosity with imagination and carried out his well-known experiment to show that lightning and an electric spark are the same thing. Cur
自考英语（一）78讲
1135 、 晶体点阵；晶体格构；晶格 crystallattice 1136 、 棘轮和爪 ratchetandpawl 1137 、 棘齿 ratchet 1138 、 棘齿弓钻 ratchetbrace 1139 、 壳型模塑 shellmoulding 1140 、
英文名句短语
Sometimes when I'm in heaven 有些时日感觉身在天堂 I get forgetful of the Earth, woah 世间繁尘琐事早已遗忘 Until I hear you bickering like boys and birds 直到我听到你的声音如鸟儿啼鸣似孩童嬉戏 The heat is on, 阳光
听歌学英语
今年7月，14岁的美国华裔少年刘继打破老虎伍兹的纪录，成为美国青少年高尔夫锦标赛史上最年轻的冠军，同时刷新老虎伍兹保持了19年的纪录。刘继出生在纽约州一个只有11万人口的小城市史
实用英语
The Effect of Advertisement 广告的效果 Some businessmen were talking about advertising on TV excitedly. As none of them had ever done it before, every one had his point of view. At this moment, Mr. Grey came by. He was a car dealer and he had on
英语小达人
60 测试新药安慰剂的疗效 DATE=6-21-01 TITLE=SCIENCE REPORT - Placebo Effect Study BYLINE=Nancy Steinbach (Start at 59
科技之光
RB 天王 Chris Brown 联手 T.I.,E-40 新单 《Episode》！有表哥 Chris Brown 的MV，都是金碧辉煌，美女缭绕的，真是太性感了，受不了了啊，合作单曲很赞哦。 歌词： [Hook] All the little bad bitches in here If
流行英文歌曲
今天我们要学的词是ripple effect。 Ripple effect, 连锁反应。 The shutdown of the local mine had ripple effects on the entire community, 当地这家煤矿的关门，在整个社区引起了连锁反应。 美国汽车业界人士警告说
英语每日一词
今天我们要学的词是ratchet。 Ratchet是一个机械部件，叫棘轮，推动机器向一个方向转动。做为动词，我们可以说: ratchet something up or ratchet something down, 意思是逐渐提高或是逐渐降低。 哈佛大学
英语每日一词
今天我们要学的词是ratchet。 Ratchet是一个机械部件，叫棘轮，推动机器向一个方向转动。做为动词，我们可以说: ratchet something up or ratchet something down, 意思是逐渐提高或是逐渐降低。 哈佛大学
英语单词荟萃
今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示，Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革，但是又担心改革可能带来的副
英语每日一词
As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th
英语作文
Affect and effect are different in meaning, though frequently confused. Affect is chiefly used as a verb and its main meaning is to influence or make a difference to, as in the following example sentences: Affect一般用作动词，其含义为：影响
英文语法词汇
今天我们要学的词是side effect。 Side effect, 副作用。一项最近民调显示，Most Americans want health reform but fear its potential side effects, 大多数美国人都希望看到医疗改革，但是又担心改革可能带来的副
英语单词荟萃
As the development of the society, people want to conquer the environment, they use the high technology to change the environment, when people are satisfied with what they did to the nature, the nature is starting to teach human being a lesson. In th
英语作文
今天我们要学的词组是ratchet up。Ratchet up，意思是激化、加剧 。North Korea's foreign minister ratcheted up tensions, saying his country had the right to shoot down U.S. planes even outside North Korean airspace. 朝鲜外交部长加
英语单词荟萃
VATICAN CITY, Feb.28 (Xinhua) -- The resignation of Pope Benedict XVI came into effect at 8 pm local time (1900 GMT) on Thursday, who had left the Vatican by helicopter for the papal vacation retreat in south Rome earlier in the afternoon. The pope h
英语新闻
BEIJING, Sept. 1 (Xinhua) -- Medicine prices at public clinics have been notably reduced thanks to a policy that promotes basic medicine, an office of the State Council said Thursday. Current price levels of basic medicine used by government-funded t
英语新闻