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Three typical methods for synthesizing methanthiol are introduced: i.e. thiourea-dimethyl sulfate method, alkali sulfide-dimethyl sulfate method, and methanol-hydrogen sulfide method.
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摘要介绍3种具有代表性的甲硫醇合成方法:硫脲-硫酸二甲酯法、硫化碱-硫酸二甲酯法和甲醇-硫化氢法。 |
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Three varieties, except Denghai 1, successfully formed multiple shoot clumps and produced differentiated seedlings on the type B inductive medium.
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在B型诱导培养基上,除登海1号外,正大128、农大108、临奥1号的芽尖能够形成丛生芽和分化苗。 |
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Three vicu?as graze in tall grass in Peru's Pampa Galeras Reserve.
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三只驼马在秘鲁的南美大草原的草丛中吃草。 |
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Three visuospatial tests (figure-ground, design copy and block design) were used to measure the visuospatial ability of stroke patients.
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摘要在中风病人的复健中,经常可观察到病人在穿衣能力训练上有学习的困难,一般认爲这种情形和病人的视觉空间辨识障碍有关。 |
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Three weeks after India's blasts, Pakistan went ahead with its own tests.
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印度试爆后三个星期,巴基斯坦也进行了试爆。 |
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Three weeks after the ceasefire, Israel says it will lift its sea and air blockade of Lebanon Thursday.
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停火三周后,以色列称将在周四解除对黎巴嫩海空的封锁。 |
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Three weeks later, he complained of decreased vision in his right eye and funduscopy revealed a yellowish-white macular lesion and a few white snowballs.
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三周后,他并发右眼视力减退,眼底检查发现一处淡黄色白斑性损害和少量白色雪球样改变。 |
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Three weeks of antibiotic usage completed the course of treatment.
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三个礼拜的抗生素使用完成整个疗程。 |
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Three weeks went by before I realized my mistakes.
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三周的时间过去了,我才意识到自己的错误。 |
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Three welding modes : DC pulsed TIG, DC MMA.
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集直流氩弧焊,脉冲氩弧焊,直流手工焊于一体。 |
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Three wheels down cleared to land.
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三轮子放下,可以降落。 |