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| 41. | Two antioxidants( boric acid and xylitol) were tested and analyzed in relation to their effects on the |
| 验证并分析了硼酸和木糖醇这两种防氧化剂,在起动用铅蓄电池干荷放电及充电过程中的差异。 |
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| 42. | Four imidazoline borates were synthesized with two kinds of fatty acid, N-hydroxyethyl-ethylenediamine |
| 以脂肪酸、-羟乙基乙二胺、酸按不同比例分别合成了四种脂肪酸咪唑啉硼酸单酯和三酯。 |
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| 43. | Type732 cation exchange resin was added in nickel bath to separate nickel ions and other cations, boric |
| 采用732型阳离子交换树脂分离镍及其它阳离子后，分别用氢氧化钠和硝酸银滴定硼酸和氯离子。 |
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| 44. | Abstract: Four imidazoline borates were synthesized with two kinds of fatty acid, N-hydroxyethyl-ethylenediamine |
| 文摘:以脂肪酸、-羟乙基乙二胺、酸按不同比例分别合成了四种脂肪酸咪唑啉硼酸单酯和三酯。 |
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| 45. | natural rubberlatex weretreated by differentlatex preservatives, including ammonia aqua, ammonia aqua/ boric |
| 用氨水、/酸、/T.氧化锌和苯甲酸钠4种胶乳保存剂处理PR107品系天然胶乳,研究胶乳中白坚木皮醇含量的变化。 |
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| 46. | " At this point drops of boric acid were squeezed into his eyes. |
| ——这时一滴硼酸水忽然洒上他的眼睛，他厌烦的喊了几声，挣扎着又睁开眼，说， |
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| 47. | Different buffers are useful in different pH ranges; they include phosphoric acid, citric acid, and boric |
| 加入酸或碱会使它们的浓度发生相应的改变，但它们的比值以及酸碱值仍接近原有数值。不同的缓冲溶液可制得不同的酸碱值。一般常用的缓冲溶液有磷酸、柠檬酸或硼酸以及它们的盐。 |
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