斯温说,在太阳系以外,只有四个行星的大气层被光谱分光镜技术(一个化学分析技术)仔细观察和研究,还有32个曾被观察到。
Swain says just four extrasolar planets' atmospheres have been studied in detail with spectroscopy, a chemical analysis technique. Another 32 or so have been observed.
在太阳系的九个行星当中,因为地球的适温,所以它是人类唯一能居住的星球。
Among the nine planets in the solar system, Earth is the only one on which human beings live because of its appropriate temperature.
水稻光温敏核不育系d 18和D23的育性转换的敏感期是第二次枝梗分化期到花粉母细胞形成期。
The sensitive phase of fertility alteration of D18 and D23 occurred from the second branch differentiation phase to pollen mother cell formation.
本区的禾本科植物绝大多数属于温寒地带分布类型,因而具有明显的高原高山植物区系的特征。
Great majority of grasses in this area is a dispersed type to temperate and cold zone. Showing the feature of highland and alpine flora is quite clear.
麻粒岩和榴辉岩中退变质阶段的角闪石主要形成于中压相系角闪岩相的温压条件。
The amphiboles of retrogressive metamorphic stages in the granulite and eclogite were mainly formed under the condition of amphibolite facies of medium pressure facies series.
提出一种新型的钢铁中温锌钙系状态下的磷化工艺。
A newly developed phosphating process under middle level temperature is put forword.
目的:探讨温脾汤药物血清对原代培养大鼠系膜细胞增殖的影响。
Objective:To study the effect of Wenpitang pharmacologic serum on proliferation of mesangial cells of rats in vitro.
针对锌系中温磷化技术的缺点,研制出一种低温锌系磷化促进剂。
In view of the shortcomings of medium temperature zinc based phosphating technology, the title accelerator has been developed.
依据水稻光(温)敏不育系育性变化的实验结果,提出衡量不育系育性变化规律的特征值及其量化模型。
In the light of experimental results on variation in fertility of photo (temperature) sensitive sterility line of rice proposed are the eigenvalues and a quantifying model for the variation.
光温敏不育系不育性表达不稳定是近年来两系杂交水稻研究和应用中遇到的一大难题。
The meaning of ISE was defined; the complexity of fertility expression of PTGMS lines, the drift of critical sterility inducing tempera tu.
介绍了预黑处理液配方和中温锰系磷化液配方。
Bath formulas of blackening pretreatment and manganese series phosphating at mid-temperature were introduced.
“华两优106”是以早熟早籼型温敏核不育系“M103S”为母本,与早稻新品系“T1005”配组而成的两系法杂交早稻新组合。
"Hualiangyou 106" was bred by crossing between early-maturing early indica temperature-sensitive genetic male sterile line "M103S"(mother parent) and new early rice line "T1005".
锰系中温黑色抗蚀磷化工艺对传统的锰系磷化工艺进行了改进。
Mn series black anti-corrosion phosphating process at medium temperature was an improved process for traditional Mn series phosphating process.
近年来对籼粳交F1和光温敏核不育系的花药培养成为研究热点,其花培后代因所用材料不同而不同。
Hybrid F1 from Indica crossed with Japoniac as well as Photoperiod and Temperature Sensitive Genic Male-Serile(PTGMS) rice lines were the hot materials used in anther culture in recent years.
最大限度控制育性的遗传漂移,是小麦温光敏核不育系提纯中要解决的主要问题。
Minimizing the genetic drift in fertility was key to the purification and reproduction of thermo photo sensitive genic male sterile (TPSGMS) lines of wheat.
结果表明现有的两用核不育系育性转换光温反应是多型性的。
The results indicate that the dual purpose genic male sterile lines are diversified on fertility response to photoperiod and temperature.
对采用辐射诱变获得的带有叶色白转绿特性的水稻光温敏核不育系“W1”的遗传及其生物学特性进行了研究。
Inheritance and main agronomic traits of photo-thermo-sensitive genic male sterile line W1 with a greenable albino leaf was investigated.
研究了一种中温锰系黑色磷化工艺。
A kind of manganese series black phosphating technics at mid-temperature was studied.
因此,选育不育临界温度低、育性相对稳定的实用光温敏核不育系,探讨不育系育性转换规律、育性遗传规律及生理生化特性,在理论和实践上都具有重要意义。
So it is very important for the theory and practice to research and insight the fertility alteration, fertility inheritance and physiological and biochemical characters of PTGMS lines.
目的探讨运用升清降浊活血法治疗温病肺系发热的临床疗效。
Objective To discuss the clinical curative effect of the therapy of ascending lucidity, descending turbidity and activating blood on pulmonary fever of warm disease.
本文介绍了采用工业硝酸酸化废旧铁屑、制取硝酸亚铁溶液,并以该溶液为主要原料研制新型铁-铬系中温变换催化剂。
A new process that industrial nitric acid reacts with iron chippings and shavings to produce ferrous nitrate solution is presented.
温敏型雄性不育(TGMS)材料对两系杂交水稻的生产起到很重要作用。
The thermo-sensitive genic male sterility (TGMS) lines play a crucial role in two-line hybrid rice production.
对农垦58S,安农S-1,衡农S- 1等光温敏核不育系及衍生不育系的雄性不育性进行了遗传与育种学研究。
From 1986 to 1996, we have researched on the heredity and breeding in sterility of photoperiod (thermoperiod) sensitive genic male rice (PSGMR) of Nongken58S, Annong S 1 and so on.
1999年和2000年分期播栽试验,研究了温度对籼型温敏核不育系2301s自交不育度和花粉败育类型的影响。
The effects of temperature on the bagged self seed and the abortive pollen types of indica TGMS rice line 2301s were studied by sowing on different dates in 1999 and 2000.
在中山温凉性针阔叶混交林内海拔约3 100 m 处是该山两大动物区系分异的界线。
The elevation of 3100 m (in Cooltemperate coniferous and broadleaf mixed forest) was the dividing line between the two realms in Cangshan Mountain.
雪丽·葛里菲兹:温戴尔·克伦是华盛顿特区美利坚大学的新闻系教授。
SHIRLEY GRIFFITH: Wendell Cochran is a journalism professor at American University in Washington, D. c.
雪丽·葛里菲兹:温戴尔·克伦是华盛顿特区美利坚大学的新闻系教授。
SHIRLEY GRIFFITH: Wendell Cochran is a journalism professor at American University in Washington, D. c.
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