The heptanal butyl mercaptan was synthesized with heptanal, sodium thiosulfate and 1 bromobutane as raw materials.以正庚醛 、 硫代硫酸钠和溴代正丁烷为原料,合成了正庚醛正丁硫醇缩醛.Keep the rough edge of the fabric aligned with the raw edge of the pipi...
Use separate chopping boards for raw meats, cooked meats, vegetables and salads.切生肉、熟肉、蔬菜和拌色拉的青菜时要使用不同的切菜板。The mere mention of John had touched a very raw nerve indeed.提到约翰就真的让人心痛。He also wanted to see Bangladesh in the ...
This is wasteful because it deprives the soil of valuable nutrients.这是一种浪费,因为它夺走了土壤的有价值的养料.He deprives the leaders of the earth of their a trackless waste.他将地上民中首领的聪明夺去、使他们在荒废无路之地漂流.When God wishes to destroy, he first d...
现在，工作在单身女性的生活中起着重要作用。These days work plays an important part in a single woman's life.体育锻炼在疾病防治方面发挥着重要作用。Exercise has a major part to play in preventing and combating disease.数世纪以来，媒人一直在犹太人社区扮演着重要角色。The matchmaker h...
A tripod will be useful to align and steady the camera.三脚架有助于调准和稳定相机。As long as the verticals align, the design will look regular.只要所有垂直面在一条线上，图案看起来就会很整齐。Align the ruler and the middle of the paper.使尺子与纸张的中部成一条直线....
What's the topic of conversation when a group of new mums get together for a natter?一群年轻的妈妈聚在一起聊天时会聊什么呢？This is why experts advise mums near night lights or strictlightsstreetlights.这也是为什么专家建议将菊花排放在远离夜光或直射光的地方.She c...