1) "fraction crit" bomb
部分临界弹
2) local criticality
局部临界
3) bifurcations of critical periods
局部临界周期分岔
1.
There are two important types of problems for center-type differential equations, one of which is the problem of weak foci and the Hopf bifurcations, while another is the problem of weak centers and bifurcations of critical periods.
第一章绪论介绍了中心型微分方程的基础知识，包括平衡点、细焦点、中心、k阶细中心、等时中心和局部临界周期分岔的定义和周期系数引理，并介绍了近年来中心焦点问题和中心与细中心问题方面的发展情况，还概括了本文的主要工作和结果。
4) Critical analysis
临界分析
5) variational crisis
临界变分
1.
On variational crisis and generalized variational principle of elasticity;
论弹性力学广义变分原理的临界变分现象
2.
The traditional approach(Lagrange multiplier method)might fail due to the variational crisis occurring during the derivation of generalized variational principles.
若应用传统的拉氏乘子法，由于会出现临界变分现象，不能得到本文的结果。
3.
The novel method can completely eliminate variational crisis (some Lagrange multipliers are equal to zero).
凑合反推法是刘商联系统方法[1]的进一步发展，应用这种方法可以方便地构造各种亚广义变分原理及广义变分原理，并可以消除临界变分现象。
6) critical marks
临界分数
1.
This paper illustrates the influence of critical marks on students psychological health suggests that teachers should give critical marks as few as possible.
文章通过调查实验,阐述了临界分数对学生心理健康的影响,建议教师尽量少给学生临界分数。
补充资料：半硬壳式弹体(见弹道导弹弹体)
半硬壳式弹体(见弹道导弹弹体)
semi-hard-shelled missile body
bQn yingkeshi dan桩半硬壳式弹体(semi一hard一shelled、ssilebody)见弹道导弹弹体。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条