“活性物”用英语怎么说

“活性物”的拼音为：...

在此条件下合成的产物中活性物含量可达40%.Under the optimum conditions, the content of active substance could reach 40 %.其固体物的质量分数为25%,活性物质量分数为18%.Its solid was 25 % and the activating agent was 18 %.对以氟化钠和一氟磷酸钠为基础的 抗 龋活性物配方的有效性给予了肯定.The ef...

vi.回家（home的过去式与过去分词形式）...

Primers may be any of the common rigid film formers.预涂层可以是任何常用的刚性成膜剂.Formers Farmers plant these barriers around their fields . Windbreaks fields.农民们在他们的土地周围种上防护林.Younger children live in family style houses. 6 th Former...

导线的两端联接到裂环整流器.The two ends of the wire are connected to a split - ring commutator.同步 低频 整流器与推挽整流器相似.The synchronized low - frequency rectifier is similar to a push - pull rectifier.低谐波 、 高功率因数 、 带有滤波器件的整流器.Low harmonics,...

铁铝富化作用...

Cynipidae的音标：...

sanctuaries的音标：...

parlour的音标：parlour的英式发音音标为：['pɑ:lə(r)]parlour的美式发音音标为：['pɑrlɚ]...

curse的一般过去时为：cursed...

我用封蜡将卷轴封好，并系上一根红丝带。I covered the scroll in sealing wax, and affixed a red ribbon.他被授予一幅卷轴,以表彰其所做出的成就.He was presented with a scroll commemorating his achievements.藏族卷轴画唐卡艺术得到保护.The Tibetan art of scroll painting , or Tan...

clever的比较级为：cleverer...

The teacher showed the students the pictures of brain tissues.老师给学生们看脑组织的图片.Give some face tissues to me.给我些面巾纸.Abdominal tissues sometimes adhere after an operation.手术之后腹部有时会出现粘连....

The field trip involved crossing a raging torrent.实地考察时要穿过一条水流湍急的河。Some students attended Prof. Jones on a field trip.一些学生随琼斯教授去野外郊游.Are you going to have a field trip on Tuesday?你准备星期二去野外旅行 吗 ?...

The gross rubber has a high plasticity and fluidity and gumminess of composition is increased.其具有较高的塑性及流动性并使胶料粘性增加.On the other hand enlarges standard currency currency fluidity creation.另一方面加大本币的货币流动性创造.She dances with ...

曾有过好一阵欢闹。There was a good deal of cheerful bustle.昨天这个屋子里充满了欢闹声.The sound of revelry filled the house yesterday.他们那一伙人经常到一起狂欢闹饮.The handful of them often went on a bust together....

Ventilation: positive downdraft exhaust ventilation should be provided to maintain vapor concentration below TLV.通风: 为了使气体聚集程度维持在阀极限值之下,应提供通畅的向下棋流排气通风设施.Water vapor from the evaporative recovery process may be recondense...