查询词典 colorless

An oily colorless liquid obtained by the condensation of two molecules of acetaldehyde.

一种无色的油质液体，浓缩两个乙醛分子而获得。

A colorless flammable liquid alkane derived from petroleum and used as a solvent .

一种无色、易燃烧的液体，从石油中提取，用作溶剂。

A flammable colorless gaseous alkene; obtained from petroleum and natural gas and used in manufacturing many other chemicals.

一种无色易燃的气态烯烃，从石油和天然气中提取，用于制造其他许多化学品。

A type of sour cherry having pale red fruit and colorless or nearly colorless juice.

酸樱桃一种酸樱桃，有青红色果实和无色或几乎无色果汁

Pleochroism: distinct in strong colored gem varieties, kunzite is violet-purple/colorless and hiddenite is green to blue-green/colorless to pale green.

晶体多样色性：不同类的锂辉石具有明显的强烈颜色，紫锂辉石具有紫罗兰色到紫色或者无色，希登石是绿色到蓝绿色或者无色到淡绿色

The invention provides a phomopsis compound of sea weed fungus with strong antibacterial activity and application in antibacterial drugs, a relative preparation method and an application, wherein the sea weed fungus is hzla01-1(Phomopsis sp.hzla01-1) as phomopsis compound A and B, compound A is colorless oily substance, and the compound B is colorless acicular crystal.

提供一类来源于海藻真菌的具有强抗菌活性，可应用于抗菌药物的拟茎点菌素化合物及其制备方法和应用。海藻真菌为拟茎点属hzla01-1(Phomopsis sp.hzla01-1)。化合物分别为拟茎点菌素化合物A和B，化合物A为无色油状物，化合物B为无色针状晶体。

And the leaves are green. The upper and lower epidermises of Prunus persica leaves are fuchsia, the mesophyll cells with chloroplast are green, chlorophyll/anthocyanin ratio is 8.88:1, and the leaves are fuchsia. The upper epidermis of Zebrina pendula leaves is colorless and transparent, the lower epidermis is purple, mesophyll cells are green, chlorophyll/anthocyanin ratio is 26.05:1, and the back of the leaves is green and the front side is fuchsia. The upper and lower epidermises of Berberis thunbergii cv. atropurpurea are transparent and colorless, palisade tissue is red and spongy tissue is a mixture of red and green, chlorophyll/anthocyanin ratio is 2.79:1, and the leaves are purple.

结果表明：大叶黄杨的叶解剖结构中上下表皮均无色，叶肉呈现绿色，m：m＝395.5：1，叶子呈现绿色；紫叶碧桃叶片的上下表皮均呈紫红色，叶肉呈现绿色，m：m＝8.88：1，叶子呈现紫红色；吊竹梅叶片上表皮无色透明，下表皮呈紫色，叶肉绿色，m：m＝26.05：1，外观呈现背面绿色、腹面紫红色；红叶小檗叶片的上下表皮均无色透明，叶肉中的栅栏组织呈红色，海绵组织呈红绿夹杂的颜色，m：m＝2.79：1，叶子呈现紫红色。

Process:① the platinum wire dipped in concentrated hydrochloric acid to colorless colorless flame on the ignition;②sample in the colorless flame ignition, to observe the flame color (if test potassium cobalt glass through observation, because in most cases need to be used when the system of potassium sodium, potassium solution, therefore often contain sodium, and sodium yellow flame color reaction, a small amount of yellow and purple, respectively, can not come out).

3操作过程：①将铂丝蘸浓盐酸在无色火焰上灼烧至无色；②蘸取试样在无色火焰上灼烧，观察火焰颜色(若检验钾要透过钴玻璃观察，因为大多数情况下制钾时需要用到钠，因此钾离子溶液中常含有钠离子，而钠的焰色反应为黄色，黄色与少量的紫色无法分别出来)。

Sour cherry with colorless or nearly colorless juice.

果肉无色或接近无色的淡红色酸樱桃。

Pale red sour cherry with colorless or nearly colorless juice.

果肉无色或接近无色的淡红色酸樱桃。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。