Myelin is a rich layer of special fatty substances around each nerve fiber ( axon ) that protects and insulates .
髓鞘是一种富含脂肪物质层特殊互相围绕神经纤维(突),保护和隔离。
Although the family 's controlling stake insulates thomson reuters from most outside investor pressure , the stock has frustrated some shareholders , including canadians who have been longtime investors .
The moss is critical to the permafrost : it insulates the soil , keeping it at subfreezing temperatures and helping preserve the ice through the summer .
苔藓对于永久冻土非常重要:它隔离了土壤,使它保持在冰点以下的温度,帮助下面的冰稳定地度过夏天。
First , the national flood insurance program , which insulates developers from much of the financial risk of building on dangerous sites , needs to be reformed .
首先,需要改革美国国家洪水保险计划,该计划能使开发商在开发危险地带时免受很多经济风险。
And , while cutting unnecessary costs is certainly an important part of this endeavor , another component should be setting a course into the future that facilitates innovation and insulates the economy from potential deep , structural risks .
These , in turn , generate a structure called the myelin sheath , which insulates nerves against leakage of the electrical signals that carry their messages around .
这些,反过来,产生一种叫做髓鞘的组织,它能隔离神经细胞防止电信号周围携带的信息泄漏。
His still-enormous cash pile insulates him from disaster and allows him to be shrewdly opportunistic , even if , on occasion , he did not quite pick the bottom of the market .