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Any of numerous chiefly North American weedy plants constituting the genus Ambrosia that produce highly ''.

北美洲任何构成豚草属的植物，有变应原的花粉，治疗花粉热和气喘。

The story that he tells here chiefly is the amorous feelings of America.

这里他所讲的故事主要是美洲的风情。

A chiefly amphibole rock with minor plagioclase and little quartz.

一种主要由闪石和斜长岩组成的变质岩。

A metamorphic rock composed chiefly of amphibole and plagioclase .

一种主要由闪石和斜长岩组成的变质岩。

A metamorphic rock composed chiefly of amphibole and plagioclase.

煌斑岩任一种含有长石和铁镁矿物中型的黑色岩石，呈现为岩脉或侵入岩

Small amphipod crustacean having a grotesque form suggestive of the praying mantis; found chiefly on seaweed.

小型片足甲壳动物，其形状怪异让人联想起螳螂；主要见于海草上。

As an intransitive verb in the sense "to be wanting or deficient," lack is used chiefly in the present participle with in

作为一个不及物动词，用于"缺乏或缺少"之意的 lack 主要和 in一起用于现在分词中

An orthodox Anabaptist sect separated from the Mennonites in late 17th century; settled chiefly in SE Pennsylvania.

在十八世纪晚期从门诺派分离出来的一个正统再洗礼流派；主要分布在宾夕法尼亚洲。

A drug, C6H10N4, that is a stimulant of the central nervous system and is used chiefly as an analeptic.

戊四唑一种对中枢神经系统有刺激的药物c6h10n4，主要用作兴奋剂

The types of Subei basin, the structural features of main abundant hydrocarbons depressions, the features and genetic mechanisms of structural trap assemblages and the characters of oil-gas distribution are chiefly studied in this work with applying comparative structural geology, analytic structural geology and Earth dynamics, the control of the structure on oil-gas is generalized, and then the exploration targets were found based on these analysis.

综合运用比较构造学、解析构造学和地球动力学等方法，重点研究了苏北盆地成因类型、主要富烃凹陷构造特征、构造圈闭组合特征和成因、油气分布特征，总结了构造对油气分布的控制作用，在此基础上寻找有利的勘探方向。

After explaining total design of automated test system for microcircuit , the thesis introduces GPIB standard .

文章在说明了微电路模块自动测试系统的总体设计后，对GPIB标准进行了介绍。

He interceded in my behalf.

他替我说情。