壮年期

经过50年的发展，中国石油工业已进入稳步发展的壮年期。

China 's oil industry has developed into manhood stage .

青年期阶段是该地洼盆地演化的最主要阶段，壮年期则是其定型阶段。

The youth stage is the most important and the adult stage is the finalized .

我国储量增长已经进入相对稳定的壮年期，峰年增幅明显下降。

The reserves growth in China has entered a relatively stable period with the increase margin in the peak year declining apparently .

期刊不够理想，不能指望完美。壮年期的失望接替青年期的幻想。

The periodical is not perfect . You can 't expect perfection . The disappointment of manhood succeed to the delusion of youth .

对恒星壮年期利用反应扩散动力学方程进行研究，结果表明，在固定边界条件或零流边界条件下，恒星是稳定的。

Adult stars have been studied by using reaction diffusion dynamical equations . It has been shown that adult stars are stable under fixed or zero current boundary conditions .

然后，笔者从地下水岩溶通道的发育、钙华景观演化和湖泊泥沙沉积等方面分析了九寨沟地质环境演化趋势，九寨沟的地下水岩溶通道发育和钙华景观演化处于青壮年期，湖泊泥沙沉积缓慢。

Then , the author analyses the trend of Jiuzhaigou from some sides , such as growth degree of petrosal soluble dypass , travertine evolvement and bedload sediment of lakes .