natural increase rate 中文意思是什麼
natural increase rate
解釋
自然增長率-
In this paper two - generation reproduction toxicity of fenvalerate, a - cypermethrin, chlorpyrifos, and triazophos was tested in a 21d period with water flea, daphnia magna, . the toxicity indicator included longevity, body length, days to first brood, days to first pregnancy, number of youth per female, intrinsic rate of natural increase ( r ), and number of broods per female. accordingly, the dose - response relations and relations between the chronic responses and enzyme levels were investigated
為了確定水蚤體內生化指標與慢性毒害效應之間的關系，特別是在低濃度暴露狀態下生化指標改變的生物學意義，以便能更準確預測早期農藥對水蚤種群的潛在危害，本文以浙江省常用殺蟲劑氰戊菊酯、高效氯氰菊酯、三唑磷和毒死蜱進行了大型蚤（ d . magna ）的急性和慢性毒性試驗（包括子代水蚤的恢復試驗） 。 -
Energy consumption of heating rooms will increase when air exchange rate become large. because the mechanisms of heating methods used currently, such as radiator heating, ceiling heating and warm - air heating, are different from each - other, the indoor thermal environment is not the same when each one of them employed for room heating. for enhancing energy efficiency of heating rooms, indoor thermal comfort and energy saving effects should be investigated when natural ventilation is used to make a good air quality indoors
房間換氣次數的增加勢必導致供暖房間能耗加大，頂棚輻射、散熱器和熱風等三種採暖方式由於供暖機理不同，形成的室內熱環境特徵不同，通風換氣時產生的通風熱損失也有所區別，為了提高大換氣量房間的供暖節能效果，必須對不同供暖方式在大換氣量情況下的熱舒適性與節能效應進行研究。 -
The birth, death and natural increase figures in the frequently asked statistics section are compiled using known births and known deaths. birth rate and death rate are calculated by relating the known births and the known deaths in a year to their corresponding mid - year population
載于常用統計資料部分的出生、死亡及自然增長數字是使用所知活產嬰兒數目和所知死亡人數編制。出生率及死亡率，是以一年內出生及死亡的所知人數，分別與同年年中的人口數字為分母構成比率。 -
Considering the water spraying can effectively increase the contact area between gas and water and promote the hydrate production rate, a batch reactor with water spraying was built in order to experimentally investigate the forming performance of natural gas hydrate, the system ' s state parameters ' variation and its effect on induced time of initial pressure and water temperature
摘要考慮到水的霧化可以有效提高氣水接觸面積，有助於提高水合物生產速率，設計和建造了一個半間歇式霧流強化水合物實驗裝置，用於探索和揭示噴霧強化天然氣水合物制備過程的基本特性，包括制備水合物的形態特徵，形成過程中參數的變化規律，以及系統初始壓力和初始水溫度對形成過程誘導時間的影響。 -
( c ) land natural productivity increase from 7843 kg / ( hm2 - a ) to 17335 kg / ( hm2 - a ) relate to altitude closely, and the mean rate of enhancing yield is 23. 53 percent in this region with annual enhancing - rate of 0. 64 percent in last 15 years. ( d ) there are many facters that have been influe ncing soil effective coefficient that ' s soil organic matter, total nitrogen, effective phosphine and soil texture in turn. in a word, attenuation cause of land productivity is the result of water and soil. ( e ) the forestland potential productivity change from 3986 kg / hm2 to 15034 kg / hm2, but it has a high distinction between southern aera and north area in yaan city. ( f ) the grassland potential productivity increase from 4085 kg / ( hm2 - a ) to 16973 kg / ( hm2 - a ), but it has a high classification of potential productivity, ( g ) ditribution map was formed of potential land productivity. ( h ) it could be act as decision support for agriculture development, national land planning and ecotop constructive, etc
5 、土地自然生產潛力水平的主要土壤限制因素為有機質、全氮，其次為速效磷和土壤質地；區域潛在生產力差異的制約因素，主要為土壤，次為水分，水、土兩項衰減合計為45 . 99 ，石棉、漢源兩縣水、土衰減達到60左右。 6 、林地潛力在3986 15034kg / hm ~ 2之間，高等級林地比重小，以大相嶺為界，北部的各縣林地生產力水平高，南部的兩縣林地生產力水平較低。 7 、天然草地生產潛力水平高，潛力在16973 4085kg / （ hm ~ 2 ? a ）之間，以高產的一、二、三級草地為主，且近10年來該比例變化不大。 -
The breathing and heart rates should increase slowly. suitable pace means the speed will increase the breathing rate yet you are still able to speak. keep your breathing natural, and adjust it with different pace
呼吸與心跳率應自然的慢慢增加，適當的步速是走路時呼吸加快，但仍能說話，並須保持呼吸自然，因應不同步行強度作有規律的調整 -
At present, the increase rate of demand on natural product of - carotene is higher than that of chemically synthesized, and the price of natural product is 3 times as many as the latter
目前天然-胡蘿卜素的需求增長率大於化學合成品，天然品的售價約為化學合成品的3倍。 -
D - glucosamine hydrochloride is abstracted from natural chitin, and it can diminish inflammation. the result shows that the rate of degradation improves with the increase of d - glucosamine hydrochloride content. but the animal test shows that d - glucosamine hydrochloride has n ' t the effect of diminish inflammation
D -氨基葡萄糖鹽酸鹽和殼聚糖都為甲殼素的衍生物，兩者具有良好的相容性，並且d -氨基葡萄糖鹽酸鹽具有抗炎、抗反應性等作用，通過兩者共混期望減少膜植入后引起的炎癥。 -
Consequently, the rate of natural increase dropped from four to two per 1 000 over the same period. the age composition of the population can be reflected from the dependency ratio. the ratio of people aged under 15 and aged 65 and over to the population of working age ( aged 15
15歲以下和65歲及以上人口與工作年齡的人口（ 15至64歲人士）的比率，即總撫養比率，由一九九七年的千分之三九九降至二零零二年的千分之三八一。
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