不稳定性

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 of the unstablity of sinters,the variability of sintering process and the increasing of sinter output etc,the hot pipe thermoconverter will occur some problems during its application in sintering plant The corresponding improvements and perfecting were presented in this paper

由于烧结矿料的不稳定性、烧结工艺的变化以及烧结矿产量的变化等原因，热管蒸汽发生器在烧结中应用时，遇到了一些问题，严重时还影响到用户的正常生产，因此本文介绍了对热管蒸汽发生器系统进行的相应改进和完善。

There is delocalization effect on d-electron orbit at the same temperature. In addition, in high temperature region, another anomaly is observed at about 200K in recoilless factor.

发生在超导温度以上的与晶格不稳定性相联系的但是没有明显的结构相变的晶格软化效应对于进一步探讨超导机制有重大意义。

Due to potential instability of the prophages carrying the stx gene, in this study, the prophage of O157:H7 86-24 strain was cured with serial passages of bacteria, confirmed by PCR and DNA sequencing. The cultural supernatant of O157 prophage curing mutant was inoculated into Vero cells, indicating that the prophage curing mutant of O157 lost the toxigenicity to Vero cells.

由于原噬菌体本身具有潜在的不稳定性，本研究以O157：H7 86-24为始发菌株，将其进行传代培养，筛选原噬菌体消除菌株，对原噬菌体在O157基因组中的整合位点进行分析，并用Vero细胞对原噬菌体消除菌株的细胞毒性进行鉴定。

The results of this study confirm the instability of prophage, and suggested that the prophage plays important role in the pathogenicity of O157:H7, and in the evolution of pathogenic bacteria.

该研究证实了编码Stx的原噬菌体具有不稳定性，原噬菌体对O157的致病性具有重要作用，也提示原噬菌体在致病菌的进化过程中也具有重要作用。

The purpose of this thesis is to research characteristics of premixed flame combustion instability and to develop active control technology.

有鉴于此，本文中对预混火焰的燃烧不稳定性及其主动控制技术进行了研究。

Nowadays, with the wide application of Arc discharge plasmas, there is a badly need for the research of it.

近年来，随着电弧放电等离子体越来越广泛的应用，对其机理及不稳定性的研究也变得越来越迫切。

It seems to be safe to use 60 mg Trimetazidine everyday in patients with unstable angina after conventional therapy. Trimetazidine can improve clinical status, reduces angina onsets and has no haemodynamic effect.

不稳定性心绞痛患者在常规治疗的基础上加用曲美他嗪60m/d治疗是安全的，且能改善心肌供血，减少心绞痛发作频率，对血液动力学没有影响。

Such an instability may be relevant to quasi-periodic oscillations in black hole binaries.

这种不稳定性可能与黑洞X射线双星的准周期振荡有关。

A series of isotropically consolidated undrained triaxial tests were conducted on a clean sand and a well-graded silty sand (with 10 % silt content) to investigate the effect of silt,void ratio and confining stress on the instability of saturated sands.

通过对净砂和级配良好粉砂(含10%粉土)进行一系列三轴固结不排水试验，研究了粉土、孔隙比和围压对饱和粉砂不稳定性的影响。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。