查询词典 irrigation

The test results of acute toxicity were examined with Pearson's degree of fitting. The results indicated that the silkworm was extremely sensitive to Chlorantraniliprole. The median lethal concentration (LC50) was 4.0905×10^(-3) mg/L and median lethal dose (LD50) was 1.1435×10^(-8) mg/larva for the 3rd instar newly exuviated larvae. No toxicity was observed when normal concentrations of Chlorantraniliprole were used to fumigate the silkworm rearing room. Both irrigation and leaf spraying with 1.25×10^(-4) mg/L Chlorantraniliprole solution showed strong systemic transmission properties in root, leaf and whole plant. The residual toxic period of this insecticide to silkworm was very long. Mulberry leaves sprayed with 1.25×10^(-4) mg/L Chlorantraniliprole solution could still cause 100% mortality of the 3 and 5 instar larvae after 60 d. Furthermore, toxic reaction was very quick. The poisoning symptoms emerged within 1~5 h after feeding on the poisonous leaves. The poisoned larvae experienced such symptoms as stopping ingestion, remaining still, vomiting slightly and body atrophy sequentially, and died ultimately.

食下毒力试验结果经Pearson拟合度检验表明，氯虫苯甲酰胺对3龄起蚕的食下致死中浓度(LC50)为4.0905×10^(-3)mg/L，致死中量(LD50)为1.1435×10^(-8)mg/头；药剂在常规浓度下对家蚕无熏蒸毒性；1.25×10^(-4)mg/L稀释药液对桑树根灌和喷叶处理，表现极强的根部、叶部和全株性内吸传导特性；药液对家蚕的残毒期很长，1.25×10^(-4)mg/L稀释药液田间喷雾桑叶，间隔60 d后采叶饲喂3龄和5龄蚕的死亡率均为100%，且中毒反应极快，添食毒叶后1~5 h出现中毒症状，经停止食桑、静伏、少量吐液、蚕体萎缩等过程后陆续死亡。

Because of regulation of irrigation works, the water level can keep a fair-sized altitude throughout the year.

由于水利工程的调节作用，&小西湖&水位常年可保持在一定高度，满足四季游乐的需求。

At Present, most of rice water savings irrigation techniques are focused on farm level, less attention has been given to the fact that water can be reused in a large scale and there is a scale effects in water reuse.

当前水稻节水灌溉技术的研究大都侧重于田间尺度，没有考虑水具有可重复利用性以及重复利用中尺度效应的存在。

Strengthening, reinforcement, filtering, drain panel for soft, ground handling, geodetic cloth for separating and filtering, artificial lawn for, playground, drain, cloth, roadbed cloth for railway and highway, waterproof material for roof, dyke fortifying cloth, cloth for harbor base, substrate for asphalt, felt, lining cloth for sewer and irrigation canal, soundproof, heat-resisting, material for building

用途：加固、过滤、软基处理排水板、分离、排水用土工布、球场人造草坪、排水布、铁路、公路路基布、屋面防水材料、护堤布、港口基础用布、油毛毡底、下水道、灌渠内衬布、建筑隔音、防热材料等。

Turfgrass quality could reach the satisfactory level under the irrigation level of 50% to 80% of field capacity.

草坪草的生长速率随着水分梯度的增加生长加快。3种处理叶片的叶绿素含量差异不显著。

So 90% field water capacity was the optimal irrigation maximum index at the stage of fruit-bearing.

因此90%田间持水量为结果期适宜的灌溉上限指标。

So 90% field water capacity was the optimal irrigation maximum index at the stage of seedling.

因此处理M3即90%田间持水量为苗期适宜的灌溉上限指标。

These rivers provide water flor irrigation.

这些河流提供了灌溉用水。

Under financial support by the Guanzhong Irrigation Improvement Project loaned by WB,the choice for the shapes of the water measuring flumes in U-shape canals have been carried out,based on the choice research,the straight wall type water measuring flume in U-shape canal was proposed for the optimal shape.

对U形渠道量水槽进行了选型，在选型的基础上，提出以U形渠道直壁式量水槽作为本研究的优选体型，并对U形渠道直壁式量水槽的体型、喉道长度、喉道宽度、过渡段长度、水尺位置、设计方法进行了优化研究，所得结果已在工程实践中应用，取得了良好的经济效益和社会效益。

The project includes irrigation, land improvement, sericulture development, fresh and dry fruit, animal farming, seeds and inputs, agricultural technical support, project research and management, and small-scale agricultural processing.

项目建设内容包括灌溉、土地改良、栽桑养蚕、干鲜果、畜牧、种子和投入物、农业技术支持、项目科研与管理、小型农产品加工等。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。