查询词典 metastable

Epigenetics is the study of processes that establish metastable that is, somatically heritable state of gene expression without altering the sequence.

表观遗传学是研究没有DNA序列变化，但可遗传的基因表达的改变。

The results show that the zirconium sol has good spinnability when n: n= 1:3, reaction time is 6h and aging temperature is 15℃. The ZrO_2precursor fibers are made from hydrous zirconia chelated by acetylacetone. The sintercd fibers arecomposed of metastable tetragonal phase and sized about 15μm in diameter. Moreover, there aremany pores inside the fibers, but no cracks.4. ZrO_2/PVP hybrid fibers were prepared by blending the spinnable zirconium sol and 10 wt%PVP solution.

结果表明，当n(ZrOCl_2·8H_2O)：n(H_2O_2)=1：3，反应时间6h，陈化温度15℃时可得纺丝性能良好的锆溶胶，ZrO_2前驱体连续纤维的组成主要为经乙酰丙酮配位的ZrO_2水合物，热处理后的ZrO_2纤维的相结构为亚稳四方相，纤维的直径为15μm左右，纤维中存在大量的纳米级气孔，但无明显裂纹。4。

We choose the multi-component bulk metallic glasses to study the structure transmissibility of metastable phase under high pressure.

选择多组元大块非晶合金，研究高压条件下亚稳相的结构遗传性。

A metastable helium atomic beam effused out of atom source is firstly cooled transversally by laser. This well-collimated atomic beam traveling through the light standing-wave whose direction is perpendicular to atomic beam is quenched, and channeling effect happens in atomic density distribution.

亚稳态原子束从原子源喷出后首先对其进行横向激光冷却，准直后的原子束穿过与之垂直的激光驻波场时发生淬火过程，原子的密度分布出现沟道化效应，给出基于光掩模制作纳米图形的基本原理、理论分析及模拟结果。

For the metastable Beta and near Beta phase alloys, with the increasing of hydrogen amounts, the flow peak stresses gradually increase; the elongations for fracture go down through minima and then go up to return or surpass the levels for the uncharging alloys.

由于在高温时氢致弱键机构相对说来不再重要，在正应力高的区域富集的倾向亦大为减小，钛合金在高达上万个PPm的含H量时仍具有相当好的塑性，表现出对氢有巨大的容忍力。

Nine univariant curves; four invariant points.Some differences were found between stable phase diagram and metastable one at 288K. The crystallization fields of K,B4O7 ?

五元体系 Li＋，N才，义／／ CO／，B.O7'二q大O 288K介稳相图中六个为 LiZCO3所饱和的结晶区分别为：KZCO3·3／2H2O，NazCO3·10H.O，及复盐NaKCO3·6HZO，而硼酸盐却分别以 LiZBZO4·16HZO，NazBZO。

In the metastable phase diagram, the quaternary system has three invariant points, seven univariant curves, five fields of crystallization [Li2SO4·H2O, Na2SO4, Li2CO3, Na2CO3·10H2O, Na3Li(SO4)2·6H2O].

其介稳相图中有3个共饱点， 7条单变量曲线，平衡固相为： Li2SO4·H2O， Na2SO4， Na3Li(SO4)2·6H2O， Li2CO3， Na2CO3·10H2O。

Time-resolved emission experiments on deflagrating metastable interstitial composites of nano-aluminum trioxide are formed in the detonation shock tube.

在爆炸激波管内采集到了纳米铝粉多隙氧化物的辐射谱，通过对所得光谱的拟合，得出其反应温度约为3100K，误差不足100K。

To a certain extent, the oxidation of sulfide and releasing of heavy metals were controlled by the chemical characteristics of hydrological environment. This process gave rise to the formation of the metastable secondary metal-bearing minerals on the surface of sulfide in the sediment.

河流水体环境化学性质影响了沉积物中硫化物氧化作用的氧化速率，导致硫化物表面亚稳定的次生富重金属矿物相的形成，对水体质量的自净有一定的作用。

Two polymorphs of Ti3SiC2, a and metastable b , have been identified by using high-resolution electron microscopy.

通过高分辨电子显微术与像模拟，发现Ti3SiC2有两种多型体， a -Ti3SiC2和 b -Ti3SiC2。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。