查询词典 unstable

Because they are made of ice, glacier caves can be quite unstable and present unique challenges to spelunkers.

因为它们是被冰做成的，冰河洞穴可能是十分不稳定和提出独一无二的挑战对于爱好探索洞穴的人。

Because they are made of ice, glacier caves can be quite unstable and present unique challenges to spelunkers.

因为它们是冰制作的，冰河洞穴可能是很不稳定的和呈现独特的挑战对于爱好探索洞穴的人。

Because they are made of ice, glacier caves can be quite unstable and present unique challenges to spelunkers.

因为它们是冰做的，冰河洞穴会不稳定性，因此对于业余的洞窟探险者来说是礼物也是挑战。

Because they are made of ice , glacier caves can be quite unstable and present unique challenges to spelunkers .

因为它们是由冰制做的，冰河洞是不稳固的和介绍唯一的挑战对于业余的洞窟探险者。

Because they are made of ice, glacier caves can be quite unstable and present unique challenges to spelunkers.

因为它们是冰造成，冰河洞穴可能很不稳定和提出唯一的挑战对于业余的洞窟探勘者。

The numerical results show that the amplification of optical solitons is unstable in the anomalous dispersion regime.

数值计算结果表明：在反常色散范围内，光孤子的放大是不稳定的。

Fenestration laminectomy of L3、5 and part of S1 was performed and the lower threshold dorsal rootlets of L2、3、5、S1 were selectively sectioned judging by electrical stimulation on the patients with lower extremities involved. Open-door laminaplasty of C5-7 and selective posterior rhizotomy of C5-8 were performed on 5 patients with upper limbs involved simultaneously in half a year. For 2 patients with lumbar stenosis or protrusion of intervertebral disc or unstable lumber, internal fixation of pedicle screw was performed while SPR.

针对下肢痉挛患者采用L3、L5及部分S1椎板开窗，通过电刺激测阈值法选择性切断部分L2、3、5，S1脊神经后根；5例合并上肢痉挛瘫患者半年后采用颈后C5~C7单开门法，选择性切断部分C5~C8脊神经后根。2例合并腰椎不稳定、椎管狭窄及腰椎间盘突出，则术中在行SPR的同时行椎管减压，突出椎间盘髓核摘除，并行经椎弓根内固定。

The effect of the friction moment of bearings on performance is researched. The forming mechanic and influence factors of the friction moment of ball bearing are analyzed. Suitable clearness and groove radius of ball bearings are obtained by experiment and calculation. The relationship between starting moment of ball bearing and various lubricants is analyzed. The measure for reducing the starting moment of ball bearing is put forward, it is the theory basis and reference for ball bearing design of small power unit system.The system is an unstable system when the 24-station ball pen tip production machine is running because of various interferences. It is too hard to describe the system by linear method, so the nonlinear formulation must be used.

研究了小动力头系统轴承摩擦力矩对运转性能的影响，分析了球轴承摩擦力矩的产生机理及影响因素，采用实验和计算的方法得到了动力头球轴承的合理间隙及球轴承沟曲率半径，分析了各种润滑剂与球轴承启动力矩的关系，并提出了减小轴承启动力矩的措施，为小动力头系统的轴承设计提供了理论依据及实践参考。24工位笔头加工机械在笔头的生产加工过程中，由于受到各种因素的干扰是一个不稳定系统，其稳定性会发生一定变化，而且很难用线性方法表述。

The given approach can be applied to any existing PID design method for controlling processes with resonances, integrators and unstable transfer functions.

给出的方法可以应用于任何现有的PID控制的设计方法和控制过程，集成、稳定的共振传递函数。

Also, it is well known that it is difficult to get good closed-loop step responses for processes with resonances, integrators and unstable plant transfer functions.

同样，众所周知，很难得到良好的闭环控制步反应过程的集成和不稳定与共振，植物传递函数。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。