查询词典 holdback

As a younger teacher working at the teaching, the author sees the change of the computer course and the information technology course. The author can understand deeply the important reformation in the information technology teaching in China. But what we can't deny is most subjective or objective problems exist. And the existence of these problems has become the holdback of realizing the information education propitiously.

笔者作为一名工作在教学第一线的青年教师，经历了由"计算机"课程向"信息技术"课程的转变，能深刻体会到我国信息技术教育中发生的重大变革，但不能否认的是，在我国的信息技术基础教育中，还存在一些主观的或客观的问题，这些问题的存在，为我国顺利实现教育信息化造成了一定的障碍。

The catalytic transformation pathway can change to decrease the yield of hydrogen and yield methyl-contained sulfides such as methyl mercaptan, dimethyl sulfide and dimethyl disulfide, but overlarge concentration of methanol would holdback the transformation of isobutyl mercaptan. The transformation of isobutyl mercaptan was favorable if the volume ratio of methanol and benzene was 0.2.The addition of methanol assume certain effect on the catalytic cracking of di-n-butyl sulfide in solvent benzene but without changing the cracking reaction mechanism of di-n-butyl sulfide.

甲醇也可以使异丁硫醇的催化转化路径发生改变降低硫化氢的产率，生成甲硫醇、甲硫醚及二甲基二硫化物等含甲基硫化物，但甲醇的浓度过高会抑制异丁硫醇的转化，在反应体系中当甲醇的体积占到溶剂苯体积的20%时对异丁硫醇的转化较为有利；甲醇的添加对丁硫醚在溶剂苯中的催化裂化有一定影响，但没有改变丁硫醚的裂解反应历程。

For example, the invoice price does not reflect the holdback, a discount the dealer gets from the manufacturer that the dealer uses to help pay the cost of financing its cars.

例如保证金就不包括在出厂价里，保证金指的是经销商从制造商那里得到的折扣，经销商会用这笔钱来支付车辆的融资成本。

As of Tuesday, Google's results were still censored in China.

截至周二，谷歌的搜索结果仍受中国审查。

In order to make the positive action increase and negative one decrease, the sub-forces of the social factors must be adjusted to form a centripetal force.

在这一过程中，人的主体性发挥是社会有机体健康发展的灵魂。