双硫磷

Dichlorvos could kill and fumigate insects, but it was unsafe for family use. While malathion and temophos were suitable for vetor control.

在有机磷杀虫剂中，敌敌畏对昆虫既有胃毒，触杀，又有熏杀作用，但毒性大，在家庭中使用不安全；适用于防制卫生害虫的尚有马拉硫磷和双硫磷等，但我国开发应用缓慢。

The Schiff base of O-ethylthonophosphoryl-dihydrazine with salicylaldehyde and its Ni, Cu, Zn complexes was synthesized.

合成了O-乙基硫代磷酰二肼的双水杨醛席夫碱(H2L)及以它为配体分别与Ni、Cu、Zn离子形成的配合物，所合成的席夫碱配体及配合物均为未见文献报道的新化合物。

In a pot experiment with spring wheat and buckwheat as test crops and with thiophosphric triamide and dicyandiamide as test inhibitors, the transformation, regulation and residual effect of 〓N-labelled urea were studied.

采用〓N标记的尿素，以N-丁基硫代磷酰三胺和双氰胺为供试抑制剂，春小麦和荞麦分别为供试作物进行尿素N转化的调节及其残效盆栽试验。

Tris-(1-aziridinyl)- phosphine oxide and 2-[bis-(2-chloroethyl)-amino]-tetrahydro-1, 3, 2-oxazaphospholidine-2-oxide(Ⅲ, B-518) possess inhibitory action against a variety of animal tumours and have been used clinically. Recently, bis-(1-aziridinyl)-phosphinyl carbamic acid ethyl ester(Ⅱ, AB-100) was found to possess significant activity with low toxicity on experimental animal tumours.

双(2-氯乙基)氨基磷酰二氯与乙烯亚胺在脱水苯或对氧六环中并在三乙胺的存在下进行缩合，生成N，N-双(2-氯乙基)-N′，N-二乙烯基-磷酰胺；与双巯基或双氨基化合物作用，则生成相应的环状磷酰胺、磷酰胺酯以及磷酰胺硫代酯氮芥类化合物。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。