This substance is a semiconductor, meaning that when electrons (which are negatively charged) are knocked free from its crystal structure, the result is a positively charged “hole” that can move around inside the crystal. 问题 句子分析(俗称“长难句分析”)是训练提高基础阅读能力的有效手段。我们...
The pace at which UMICs and HICs accessed enough doses to vaccinate each person with one dose seems to be similar (Fig.13, left side). Nevertheless, this is skewed by the large number of deliveries in China, which accounts for a large portion of the deliveries in UMICs. When removing ...
This substance is thought to help bee immune systems fight against bacterial infections. All told, these findings suggest that nurse bees are indeed, via their royal jelly, passing antigens on to the queen, then into eggs. They also mean, because the young receive royal jel...
aThreshold level : Concentration level which defines the limit (equal to or) above which the presence of a substance or material in a product or subpart must be declared based on the requirements of this specification. 閾電平: 定義了極限相等 (或在的) 濃度水平哪些之上必須宣稱物質或材料的出現...
aFor the substances having a defined prohibition threshold, this is the threshold at which the substance is prohibited. The threshold is expressed either as a weight percentage, or in PPM (parts per million), or as a weight per unit area for each substance. It is applicable to homogenous ...
c The long short-term memory model updates the prediction by reading the document one word at a time. It has a memory cell that allows it to remember some prior context (dotted lines). In this work, we used a bidirectional implementation, which combines the forward long short-term memory ...
A device for treating a surface, in particular a textile surface or a leather surface, such as, for instance, the upper surface of leather shoes, with a liquid substance, comprises a holder with a reservoir for this substance and with a sponge-like body via which the substance absorbed from...
What stunted Wikipedia’s growth And what does the slump tell us about the long-term viability of such strange and invaluable online experiments Perhaps that the Web has limits after all, particularly when it comes to the phenomenon known as crowdsourcing. Wikipedians—the volunteers who run the...
Structure EA3N2Si2O4: D (here, EA= (Sr, Ba, Ca) and D=Eu) the luminous substance which it possesses offers the emission of red, at the same time, is characterized by high stability and simple production. To be applied because of the illuminant of various types it is possible the ...
aThe CA 2006 splits this duty but the substance of the law remains the same. Existing contracts are now covered by s 182 which is explained below and s 177 concerns proposed contracts only. 加州2006分裂这义务,但法律的物质保持同样。 现行合同由下面解释和仅s 177关心提出的合同的s 182现在包括...