Recent advances in reproductive endocrinology are primarily due to the development of radioimmunoassay . 最近取得的生殖内分秘研究成果，主要是由于放射免疫分析的进展。
Clarity in economic analysis requires that a clear distinction between flows and stocks be maintained at all times . 经济分析的明确性要求无论何时都应分清流量和存量。
The coatings are sprayed onto the components being analyzed by using aerosol cans or compressed-air spray guns . 涂料是用按钮喷雾罐或压缩气喷枪喷到所要分析的零件上去的。
The attraction of atomic emission techniques is that they provide a means for simultaneous multi-element analysis . 原子发射技术的长处在于它是一种能同时进行多元素分析的方法。
The utility of the response factor model is not restricted to these processes or by the specific forms of analysis performed . 响应系数模型的效用并不局限于这些过程，也不受进行分析的特定形式的限制。
The first and deliberate use of analysis to tackle what seemed to be a clear problem of algebra was made by him . 分析的第一个深刻的，经过精心考虑的用途是由他为了处理一个看来是明白的代数问题作出的。
For some research purposes and possibly for referee work, analyzed primary standards may be obtained from the u.s. bureau of standards . 对于某些研究工作和仲裁工作，可以从美国标准局获得经过分析的一级标准物。
By about 1800 the mathematicians began to be concerned about the looseness in the concepts and proofs of the vast branches of analysis . 大约在1800年前后，数学家们开始关心分析的庞大分支在概念和证明中的不严密性。
Over the periods their saliva , a mild digestive juice like our own , was converted into a poison that defies analysis even today . 经过若干演化阶段，蛇的唾液，一种温和的助消化的象人们的唾液一样的液体变成了甚至在今天也难以分析的毒液。
Surprise attack has been the subject of military writing and analysis since the beginning of warfare, and in america particularly since december 7, 1941 . 自从有战争以来，在美国特别是自一九四一年十二月七日以来，突然袭击就是军事著作和军事分析的主题了。
