查询词典 rhombohedra

This is mainly ascribed to the tetragonal phase increase and the rhombohedra phase decrease.

这主要是由于四方相增多，三方相减少，从而使弛豫铁电体变为正常铁电体。

CaCO3 polymorphs with rhombohedra, needle-, tree-like morphologies have been synthesized by a convenient hydrothermal reaction with the absence of additives or elaborating pH control.

用简便的水热法制备出菱形、针状和树状的碳酸钙晶体，不需任何添加剂，也不需要对pH值进行控制。

Moreover,there exists a morphotropic phase boundary for the composition at x=0.33mol,and the rhombohedra phase and tetragonal phase co...

在该相界附近组成具有优异的介电和压电性能：εm~38000，Ec~5kV/cm，Pr~31.5μC/cm2，d33~500pC/N，这主要是由于宏观上的三方和四方两相共存，或微观上的微畴和宏畴共存引起的。

Besides three sable phases Ni〓Ti, NiTi and NiTi〓, a precipitate appearing needle shape in B〓-TiNi matrix is observed, which is identified as Ti〓Ni〓 phase with rhombohedra structure.

在对两种不同烧结条件样品的显微组织观察中发现1100℃烧结样品的相中有析出相产生，可确定为具有菱面体结构的亚稳相。

Moreover, there exists a morphotropic phase boundary for the composition at x= 0.33 , and the rhombohedra phase and tetragonal phase coexists for the composi tion near MPB, but the pure rhombohedra phase and tetragonal phase separately exists for the composition away from MPB.

陶瓷样品X-射线衍射相组成和相结构分析表明：所有陶瓷样品均为纯钙钛矿相，无任何其他杂相出现；且组成在x=0.33处存在一准同型相界，在该相界附近三方相和四方相共存，而远离该相界则分别为纯三方相和四方相。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。