英汉双语例句-生物医药大词典

Theorists, however, have had trouble trying to establish how the matter in the ring loses enough of its orbital motion to fall into the hole in the first place.

中文意思：
然而，理论工作者首先遇到的难题是无法确认环状星云的物质是如何偏离自己的轨道而掉进黑洞的。

以下为相关句子列表(点击查看，可以看对应的解释）：

	Theories of language learning are considered, including parameter-setting and maturation.			考量语言学习理论，包括参数设定和成熟度。
	Theories of technology acquisition are examined.			本课程亦检验技术获取理论。
	Theories on bond pricing include classical interest rate theory, liquidity preference theory, loanable fund theory and reasonable expectation theory.			摘要债券价格的决定理论主要有古典利率理论、流动偏好理论、可贷资金理论和理性预期理论。
	Theorists have proposed ways of resolving this quandary.			理论家提出了一些方法来解释这个问题。
	Theorists nowadays include this feedback in their simulations, but the observations by Genzel's team suggest that they haven't gone far enough.			理论学家现在已将这项反馈机制加入他们的模拟中，但甘泽尔团队的观测提醒了他们，这样可能还是不够。
	Theorists, however, have had trouble trying to establish how the matter in the ring loses enough of its orbital motion to fall into the hole in the first place.			然而，理论工作者首先遇到的难题是无法确认环状星云的物质是如何偏离自己的轨道而掉进黑洞的。
	Theory X is not merely unfashionable, it has become so politically unacceptable I can't think of a single serious management thinker who has a good word to say about it.			理论不仅落伍，而且不符合政治正确要求，我想不出有哪个严肃的管理思想家说过它的好话。
	Theory analysis shows that surface roughness' amplitude, wavelength, and texture on the bearing contact surface have a prominent effect on high-speed cylindrical roller bearing elasto-hydrodynamic performances; Reasonable choice of surface roughness' ampl			理论分析表明：轴承接触表面粗糙纹理方向、粗糙度幅值及其粗糙度波长对高速圆柱滚子轴承的弹流特性具有显著的影响；合理选择轴承接触表面粗糙度幅值、波长及纹理方向，可以有效改善高速圆柱滚子轴承的弹流特性。
	Theory and Practice; Excellence and success!			学理与实用并重;追求卓越和成功!
	Theory indicates that it is simply not possible to extract all the kinetic energy.			理论显示获得所有动能是不可能的。
	Theory is valuable in that it can provide a direction fro practice.			理论之所以有价值，是因为它能为实践指出方向。