英汉双语例句-生物医药大词典

A major discovery unfolded over the past five years as it became possible for scientists to compare accurate maps of the geomagnetic field taken 20 years apart.

中文意思：
过去五年里，由于科学家终于能够比对相隔20年所观测到地球磁场的准确分布，因而有了重大发现。

以下为相关句子列表(点击查看，可以看对应的解释）：

	A major coal mining area of depleted coal, and anthracite Shoumei poverty, low sulphur (0.4%), China grey (14%), made of high heat (25MJ/KG), meet environmental requirements, is the quality of life and industrial Donglimei coal, mainly for power generatio			矿区主要煤种有贫煤、贫瘦煤和无烟煤，低硫（0.4%）、中灰（14%）、高发热量（25MJ/KG），符合环保要求，是优质的工业动力煤和生活用煤，主要用于发电、冶炼和民用。
	A major component of wheat breeding programmes is to incorporate disease resistance, particularly to the various leaf and stem diseases, the races of which frequently change and genetic resistance continually breaks down.			小麦育种项目的一个重要部分是抗病育种，特别是针对各种叶和茎病，致病菌系经常改变，致使小麦的遗传抗性不断地失效。
	A major concern investors have about unsecured corporate bonds, no matter how highly rated, is that the rating agencies will downgrade them because of some disruptive event affecting the issuer.			投资者对于没有保证的公司债券的主要担心在于，不论现在的评级有多高，一旦发生对发行人产生严重影响的事件，评级机构将调低其评级。
	A major condom brand said it expected thousands of applicants for a new unpaid job on offer _ condom tester.			一个主要的避孕套品牌生产商表示它期待能有数以千计的申请者参与这个无偿的避孕套测试。
	A major design change adds uncertainty to apathy as a reason that computer owners might postpone an upgrade.			对电脑本来就不太关心的消费者来说，核心架构改变所增加的不确定性，可能使他们因而延缓升级。
	A major discovery unfolded over the past five years as it became possible for scientists to compare accurate maps of the geomagnetic field taken 20 years apart.			过去五年里，由于科学家终于能够比对相隔20年所观测到地球磁场的准确分布，因而有了重大发现。
	A major divided highway designed for high-speed travel.			高速公路为高速行进而设计的占主要的被分开的公路
	A major dust storm causes deterioration in the air quality.			一波强大的沙尘暴导致空气品质恶化。
	A major feature of Chobe National Park is its elephant population.			丘比国家公园的一个主要特色就是它的象群。
	A major feature of the island is Lake Tegano, which was the former lagoon on the atoll.			这个岛最主要的特色就是特加诺湖，它以前是环状珊瑚岛的泻湖。
	A major has a crown on the shoulder of his uniform.			一名少校在制服的肩部有个王冠形的纹章。