free ship是什么意思

用法例句

The cognition on Italian neutrality during World War Ⅰ;

对第一次世界大战时意大利中立问题的认识

Switzerland choosed neutrality and implemented a flexible neutral policy based on the various historical and realistic factors during World War II.

瑞士在二次大战时期基于各种历史、现实因素而选择中立,推行了一种弹性中立政策;依靠这种灵活中立政策,瑞士博取了交战双方对其中立地位的认可和维持。

The USA government took the same foreign policy in two world wars,that is,from the initial neutrality to a member of the later wars.

美国在两次世界大战中均采取了由最初的中立到后期参战的外交政策,这固然受其政治、经济、地理位置等因素的影响,然而民族特性则从根本上决定着美国在两次世界大战中的外交政策。

Guaranteed cost control for a class of nonlinear uncertain neutral systems with mixed delays;

一类非线性不确定中立时滞系统保性能控制

T-stability of the Euler-Maruyama method was studied for stochastic delay differential equation of neutral type.

研究了中立型随机延迟微分方程Euler-Maruyama方法的T-稳定性。

In this paper, the oscillation for a class of impulsive neutral parabolic partial differential equations is investigated.

研究一类脉冲中立抛物型偏微分方程的振动性,借助Green散度定理和脉冲中立型微分方程,得到了该类方程在Dirichlet边界条件下所有解振动的一个充要条件。