tscl

Effects of media , temperature and operation mode on the tosylation of 1 β cyclodextrin with p TsCl were studied .

研究了不同反应介质、操作方式、反应温度等对β-环糊精与对甲苯磺酰氯磺酰化反应的影响。

The particle " le " is used quite frequently in Chinese , which has rich grammatical meaning and complex functions has been a important and difficult problem in TSCL .

助词了是汉语中使用的一个高频词，但由于其语法意义的丰富性和语法功能的复杂性，也一直是对外汉语教学的重点和难点。

The quantifier theme is an unavoidable difficulty of the teaching process , especially for the students who learn TSCL ( Teaching Chinese as a Second Language ) . Actually there are some profound rules hiding in many Chinese measure words .

汉语的教学中，量词一直是一个不可回避的难点，特别是对学习对外汉语的学生来说。事实上在很多量词的背后，隐藏着很深刻的规律。

Tscl / 2 mutations lead to GSC rapid loss by differentiation , and in Tscl mutant GSC , BMP signaling activity is significantly down-regulated , but there is not a distinguishable up-regulation of bam expression .

Tsc1或Tsc2突变会导致GSC很快的分化丢失，突变的GSC中BMP信号通路中水平明显下调，而bam的表达却没有明显的上调。