挥发的

E. methyl jasmonate +methyl salicylate, MeJA +cis-hexenal, MeJA +trans-hexenal, MeJA +benzothiazole, and then the induced activities of three defensive enzymes including peroxidase, polyphenol oxidase and phenylalanine ammonia lyase were measured.

以1年生合作杨扦插苗为试验材料，利用茉莉酸甲酯分别与水杨酸甲酯、顺式己烯醛(cis-hexenal)、反式己烯醛(trans-hexenal)和苯骈噻唑混合的4种挥发物熏蒸合作杨叶片，检测过氧化物酶、多酚氧化酶及苯丙氨酸解氨酶3种防御酶的活性变化。

The volatile organic compounds produced in the laser-sculpture process of bicolor board were studied using cold trap condensation-gas chromatography-mass spectrometry.

研究了冷阱浓缩气相色谱－质谱法检测双色板在激光工艺雕刻过程产生的挥发性有机污染物的组成。

Roasting,however,must not be "pushed" too hard to increase aroma since there is a risk of decreasing it given the volatility of the many components that make up the caffeone.

无论如何，烘焙为一定不可以为了提高香气而&推&得太厉害，因为这样可能会使得咖啡中的许多组份挥发，从而会冒降低香气的风险。

Therefore, it is necessary does the further research and the development to the stone calamus non-volatile constituent and the pharmacology, provides the scientific basis for the clinical reasonable medication.

因此，有必要对石菖蒲的非挥发性组分及药理作进一步的研究与开发，为临床合理用药提供科学依据。

Cancerigenic fungi and volatility N-nitrosate compounds in residents' meal, Helicobacter pylon in gastric mucosa, and total content of vitamin C in 293 healthy adults' serum were detected by culture, authentication, and laboratory examinations.

用培养鉴定及实验检测等手段检测居民膳食中的致促癌真菌、挥发性N-亚硝基化合物，胃粘膜中的幽门螺杆菌及293名健康成人血清总维生素C含量。

METHODS Volatile oil was extracted from Capparis spinosa L seeds using steam distillation method and the extractive rate was 1.12%.

用水蒸气蒸馏法提取种子中的挥发油并采用GC-MS技术分离鉴定其中的挥发性成分。

olatiles of different Chaenomeles sinensis cultivars in Shandong Province were investigated by means of HS-SPME coupled to GC/MS,and fruit aroma of different cultivars was studied.

中文摘要：用固相微萃取—气相色谱/质谱联用技术测定了山东省主栽光皮木瓜品种的挥发性物质，并对不同品种果实的香气成分进行了探讨。

Some people have reported seeing more semivolatile elements in a class of interplanetary dust particles called "chondritic porous" IDPs.

曾有人报告在一类被称作&多孔球粒陨石&的行星尘埃颗粒中见到了较多的半挥发性元素。

The basic reason for oxygen concentration reduction in heavily Sb-doped CZSi was that oxygen solubility decreased when element Sb with larger radius doped degenerately into silicon crystal.

为解释重掺锑硅单晶中氧含量较普通直拉硅低，且随着掺锑量增加，氧含量下降，而重掺硼硅单晶中氧含量并不降低这一实验事实，应用热力学计算，得到重掺锑硅单晶生长时，生成Sb〓O〓的反应不能自发进行，因此不会因Sb〓O〓的大量挥发而使重掺锑硅单晶中氧含量降低。

The diaminobenzidine method was used to decide the concentration of diacetyl in fermented milk cultured in 25 or 30 ℃ for 4, 8, 12, 24, 36 and 48 hours respectively. GC-MS method was used to assess the identification and contents of volatile flavor compounds.

采用邻苯二胺法，分别测定25，30℃培养4，8，12，24，36和48 h发酵乳中双乙酰的含量，用GC-MS方法测定了发酵乳中挥发性风味物质的组成。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。