Question

找人帮我翻译一下这几段外文，论文就差它们了，不要用软件翻译的，麻烦各位英语大虾了！

Numerous plants and derived products, in particular essential oils, have been investigated and described as
potentially natural sources of insect repellent [5,6]. Most plant-based insect repellents currently on the market contain
essential oils from one or more of the following plants: citronella (Cymbopogon nardus), cedar (Juniper virginiana),
eucalyptus (Eucalyptus maculata), geranium (Pelargonium reniforme), lemon-grass (Cymbopogon excavatus),
peppermint (Mentha piperita), neem (Azadirachta indica) and soybean (Neonotonia wightii) [7]. When used, most of
the essential oil-based repellents tend to give short-lasting protection for usually less than 2 h [2]. Although none of the
plant-derived repellents tested up to now provide the wide effectiveness and duration of DEET, growing concern about
quality of life and the environment is stimulating further investigations of plants.

2.2. Plants
Selection in the repellent screening focused principally on plants that were in similar or adjacent families to those
reported to have repellency against mosquito vectors [5,8–10]. Ten plant species, reported in Table 1, obtained from
medicinal herb suppliers in Chiang Mai province were identified by the Botanist James Franklin Maxwell of the CMU
Herbarium, Department of Biology, Faculty of Science, Chiang Mai University, Thailand. Voucher specimens were
deposited in the Department of Parasitology, Faculty of Medicine, Chiang Mai University.

2.4. Human volunteers
Four volunteers, 2 males and 2 females, 21–52 years old, weight 43–70 kg, who had no history of allergic reaction
to arthropod bites, stings or repellents were recruited from the students and staff of the Department of Parasitology,
Faculty of Medicine, Chiang Mai University. Before signing an informed consent form, the volunteers were
interviewed and instructed on the methodology, probable discomforts to subjects and remedial arrangements. The study
was reviewed and approved by the Research Ethics Committee of the Faculty of Medicine, Chiang Mai University.
2.5. Mosquitoes
A pathogen-free, laboratory colony of A. aegypti, which originated from specimens collected in Chiang Mai
province, northern Thailand, were reared and maintained continuously for several generations in an insectary using the
standard procedures described by Limsuwan et al. [11]. Prior to testing, female mosquitoes (5–7 days old) were starved
by providing them only water for 8–12 h.

2.7. Investigation of the repellent activity of oil mixtures
Combination pairs of the effective oils established from the screening test were evaluated against A. aegypti,as
before, to determine whether these mixtures increased protection time against mosquito bites, compared with the
constituted oil alone.

麻烦各位英语大虾了，谢谢！

Answer 1

许多植物和衍生产品，特别是精油，进行了调查，形容
昆虫驱避[潜在自然源5,6]。大多数植物为基础的目前市场上的驱蚊剂含有
从一个或多个下列植物更多：香茅（香茅nardus），雪松（朱弗吉尼亚）精油，
桉树（桉树斑），香叶（荷叶），柠檬草（香茅excavatus）
薄荷（薄荷），印度楝树（印楝）和大豆（Neonotonia wightii）[7]。使用时，大部分
精油的驱虫一般都会给予短期持久通常不到2小时[2]的保护。虽然没有了
植物性驱虫试验到现在提供了广泛的避蚊胺的有效性和持续时间，越来越关注
生活质量和环境的刺激植物的进一步调查。

2.2。植物
在选择驱蚊检查内容主要集中在植物，在类似或相邻家庭的有
据报道，对蚊虫驱避[5,8-10]。 10个植物物种，在表1所列，获得
在清迈省药材供应商确定了植物学家詹姆斯富兰克林麦克斯韦中央结算系统
标本室，生物系，理学院，清迈大学，泰国。券标本
存放在寄生虫学，医学学系，清迈大学。

2.4。人类志愿者
四名志愿者，2男2女，21-52岁，体重43-70公斤，谁没有过敏性反应的历史
对节肢动物叮咬，蜇伤或驱虫被招募的学生和寄生虫学教研室的工作人员，
医学院，清迈大学。前签署知情同意书时，志愿者
采访和方法论上的指示，以主题和补救措施可能不适。该研究
为审查和研究伦理委员会的医学院，清迈大学认可。
2.5。蚊子
阿无病原体，A的埃及伊蚊，从清迈收集标本实验室的殖民地起源
省，泰国北部，被饲养和维持在一个几代连续使用insectary
由Limsuwan等人的标准程序。 [11]。在此之前的测试，（5-7日龄）雌性蚊子饿死
通过为他们提供8-12小时只为水

2.7。调查的石油混合物驱避活性
从筛选试验建立了有效的精油组合对甲对埃及伊蚊进行了评价，为
之前，以确定是否这些混合物对蚊子叮咬更多的保护时间，相对于
构成石油孤单。