R-H

→(?) with the direction unchanged. The solvability of this R-H problem is discussed by using the continuation method.

本文利用连续性方法，研究了这个R-H问题的可解性。

Concrete must be cured at least 28 days at 20℃ at 50 % R . H . or equivalent time.

混凝土必须至少固化28天(20℃和50%R.H.), 或在喷漆前得到相同程度的固化.

Standard testing conditions for paper are 23 degress C and 50 % r . h.

测试纸张的标准环境是摄氏2350%.

Calculations of the vibrational frequence of the chemical bond R-H in the covalent molecules like h_nrh

共价键型分子氢化物HnR-H中R-H键振动频率的计算

R. H Tawney lends his name the Tawney society at Rugby School.

钢筋八托尼姓名转借给托尼学校橄榄球协会.

Accurate zero order and infinite ( r-h) order of Lacunary and generalized Dirichlet series

缺项广义Dirichlet级数的准确零级和无穷（R-H）级

Multiple R-H Method and the infinite-Dimensional Virasoro Group on the Solution Space of the Double Ernst Equation

多重R－H法及二重Ernst方程解空间的无穷维对称Virasoro群