This paper has reported the new technique of distilling sodium zinc chlorophyllin from water lettuce leaves.
本文报道了以水浮莲叶为原料提取叶绿素锌钠盐的新方法，同时探讨正交试验优化的工艺条件。
The paper provides the theoretical basis for protecting and harnessing the ecological environment of Wanfeng lake by analyzing the reason of water lettuce pollution.
为探索万峰湖水白菜发生原因，在调查与取样分析的基础上，对万峰湖水质现状进行了评价与分析。
Accumulation of pirimicarb in sludge, grass carp, duckweed and water lettuce increased with time. In the meantime, concentration of pirimicarb in aquatic phase decreased continuously.
在底泥、草鱼、浮萍以及水浮莲中的积累都随时间的延续而增加，与此同时，水体中抗蚜威的浓度不断下降。
Lettuce, herbs, bok choi and kale can all be grown this way. The plants float on a foam sheet, their roots dangling into the water below.
莴笋、药草、白菜和甘蓝都可以通过这种方式培养。植物漂浮在泡沫板上，它们的根悬浮在下面的水里。
It can be used on fresh spinach and lettuce too before rinsing under running water, because vinegar isn't going to taint the taste of your salad!
它也可以在自来水冲洗前，用来对新鲜菠菜和生菜进行清洗下，因为醋是不会败坏沙拉的味道。
The same goes for rinsing lettuce and other vegetables: rinse it in large container and re-used the water to water plants or even your grass outside.
清洗生菜和其他蔬菜也一样：在大容器里清洗，然后重复使用这些水浇灌植物，甚至外面的草地。
Transportation costs also are a major factor in food prices, especially for water-heavy vegetables such as romaine lettuce.
运输的价格是影响食品价格的一个重要因素，对于富含水的蔬菜，如直立莴苣，更是如此。
Eastern European pastoral, mixed lettuce salad, peanut, small water Radish, Vinaigrette.
东欧田园风情沙拉混合生菜，花生碎，小水萝卜，油醋汁。
Results in the germination tests of several vegetable seeds showed that germination index of lettuce and tomato seeds were significantly inhibited by the insufficient substrate water extract.
进一步利用浸提液进行生菜、番茄、黄瓜等多种蔬菜种子的发芽试验发现发酵不充分的芦苇末基质浸提液显著抑制番茄和生菜的发芽率和胚根的伸长。
Lettuce is an early annual crop that grows best in cool weather and with ample water. Though usually consumed in salads, it may also be cooked.
莴苣是在温暖气候和充足水分条件下才生长良好的一年生时鲜作物。莴苣多用于沙拉，亦可烹食。
Nutrient solution had been replaced water before lettuce was reaped for a week, which can reduce effectively accumulation of nitrate in lettuce, moreover, the effect of the yields isn't apparent.
在叶用莴苣采收前一周，将营养液换成清水，对叶用莴苣产量影响不大，叶用莴苣完全可以利用前期吸收的营养维持生长，硝酸盐累积大量减少，可有效的控制硝酸盐含量，改善品质。
Foods that should not be frozen? Foods with a high water content, such as tomatoes, marrows, cucumbers, strawberries, radishes, lettuce and watercress.
不应该被冻结的食物？和一个高的含水量，像是蕃茄，髓，黄瓜，草莓，萝卜，生菜和豆瓣菜的食物。
Simmer three to four large lettuce leaves in a cup of water for 15 minutes.
把四片大生菜叶放在水杯里慢慢煨上十五分钟。
Simmer three to four large lettuce leaves in a cup of water for 15 minutes.
把四片大生菜叶放在水杯里慢慢煨上十五分钟。
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