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The spectral characteristics and photolysis quantum yields of ACRM composed of vinylidene chloride-methyl acrylate(VdCl2-MA) copolymer and pentamethoxyl red were measured.

本文研究了由偏二氯乙烯-丙烯酸甲酯共聚合物(VdCl2-MA)和五甲氧基红指示剂组成的酸敏变色记录材料的光谱特性，测定了其光分解量子产率。

Generally, yields are better than many growers thought after an extremely uneven growing season weather pattern.

一般而言，虽然玉米也经历了极度不均衡的天气情况，但是今年的玉米产量肯定要优于其它的农作物。

Seed cotton yield of 7.9 t/ha and 7.2 t/ha have been achieved under experimental conditions and under on-farm trials in farmers' fields (Bhatti, 1. M, et al, 1981). During 1991 at a private farm of Mr. Sadiq Akbar Bokhari in Multan area of Punjab, average yields of 3.5 t/ha equivalent to 1.2 t lint/ha from an area of 80 ha and 4.5 t/ha equivalent to 1.5 t lint/ha from an area of 20 ha were obtained. Recommended agronomic practices including the application of weedicide, pesticides, fertilizers (125-50-50 N-P2O5-K2O kg/ha) besides planting of cotton on ridges were followed. Crop was planted between 5-30 June and harvested between November and following February. Wheat was planted on 4 ha in standing cotton in the end of November and produced 2.8t/ha yield.

在试验条件下和农民田地的大田试验中已获得籽棉7.9吨/公顷和7.2吨/公顷的高产（Bhatti，I.M，等1981）。1991年在旁遮普省木尔坦地区，Sadiq Akbar Bokhari 先生私人农场的80公顷土地上，籽棉平均产量3.5吨/公顷，折合皮棉1.2吨/公顷，另外20公顷土地上籽棉4.5吨/公顷，折合皮棉1.5吨/公顷，推荐的农艺措施包括使用除草剂、农药、肥料（125-50-50 N- P2O5- K2O公斤/公顷）以及起垄种植棉花。6月5~30日种棉，11月至次年2月采收，11月底在4公顷站立棉株间套种小麦，单产小麦2.8吨/公顷。

With the reaction temperature increasing, whisker size reduced, but the yields and integrity of whisker have decreased.

随着保温温度的增加，晶须细化，但晶须结构的完整性及产量都有所下降。

The result indicated that both woods of feedstock size of 2×2×10 cm^3 had the highest yields of wood charcoals and vinegars. At the same pyrolytic conditions, the C. japonica had higher heating value of charcoal, yield and soluble tar content of wood vinegar than A. confusa. While, the yield of charcoal, pH value, specific gravity, and organic acid content of wood vinegar of A.

试验结果发现，柳杉及相思树均以2×2×10立方公分者有最高之木炭及木醋液收率；在相同条件下，柳杉之木炭热值、木醋液之收率及溶解焦油含量均高於相思树者，而木炭之收率、木醋液之酸碱值、比重及有机酸含量则均以相思树高於柳杉者。

Yield of wood vinegar from the pretreated wood was increased,but yields of wood tar and charcoal were decreased.

与未处理材相比，处理材木醋液的收率增加，而木焦油和木炭的收率减少。

Yields of wood vinegar and wood tar were almost constant,though yield of charcoal was slightly decreased with the increase of acetic acid aqueous solution concentration.

处理液的醋酸浓度增加后，木醋液和木焦油的收率几乎不变，但木炭的收率稍微减少了。

To determine x-ray yields, we needed accurate measurements of the x-ray spectrum produced by each source.

为了决定X射线的产额，我们需要精确的测量各种源的X射线产出量。

The rules of photo bioactivities are: Without illumination, the tested xanthene derivatives showed almost the same level of inherent toxicity to the same organism, which showed the inherent toxicity of xanthene derivatives were primarily dependent on the structure of parent molecule. Upon illumination, the photosensitizers showed obvious phototoxicity to all organisms. The xanthene derivatives showed stronger phototoxicity to Gram-positive bacteria. With the increasing number of halogen substituents, the singlet oxygen yields increased and the phototoxic activity increased too.

呫吨类化合物的生物活性的变化规律为：未经光照的条件下，呫吨类化合物的对同种待测微生物的固有生物活性基本相同，说明固有毒性可能主要决定于化合物分子的母核结构，其卤素取代基团对其影响较小；经实验光源照射下，所测MLC值明显低于未经光照条件下的值，表明呫吨类化合物对三种微生物的光敏活性明显强于对其相应的固有活性；呫吨类化合物对革兰氏阳性菌能发挥较大的光敏活性。

Effects of alkali concentration, extraction temperature, ratio of solid to liquid and extraction time on yields of xylan were analyzed.

以稻壳为原料，采用制备综纤维素再碱提取的方法，分析了不同碱溶液浓度、温度、固液比和时间对稻壳半纤维素中多戊糖得率的影响。

It's bell can reach over a meter in diameter.

它的身体最大可以达到直径1米多。

Now they are overdue and I shall have to pay a fine.

现在他们过期了，我不得不付罚款。