a bulto

at a rough guess

Tal era, a bulto, la posición de Jaurès.	That was, roughly, what Jaurés said.
Calcularon a bulto $150,000 para cubrir los daños.	They calculated roughly $150,000 to cover the damage.
No hay dos columnas iguales, si bien, por lo general, suelen ser notablemente parecidas si se miran a bulto.	There are no two equal columns, although, in general, tend to be remarkably similar if they look to bulk.
Realmente, es razonable esperar que los aliados sepan que no colocáramos a bulto de nuestras tropas en Calais.	Actually, it is reasonable to expect the Allies to know that we would not station the bulk of our troops at Calais.
En primer lugar, APFill Ink Coverage Meter le permite estimar costes de impresión exactos, no a bulto, sino utilizando fórmulas exactas.	First of all, APFill Ink Coverage Meter allows you to estimate the exact manufacturing cost of the imprint, not by eye, but by using accurate formulas.
El squire y yo devolvimos el disparo, pero, como no pudimos apuntar a bulto alguno, no hicimos más que desperdiciar la pólvora.	Both the squire and I returned the shot; but as we had nothing to aim at, it is probable we only wasted powder.
La biología estaba todavía en mantillas; los organismos vegetales y animales solo se habían investigado muy a bulto y se explicaban por medio de causas puramente mecánicas; para los materialistas del siglo XVIII, el hombre era lo que para Descartes el animal: una máquina.	Biology still lay in swaddling clothes; vegetable and animal organisms had been only roughly examined and were explained by purely mechanical causes. What the animal was to Descartes, man was to the materialists of the 18th century—a machine.
La biología estaba todavía en mantillas; los organismos vegetales y animales solo se habían investigado muy a bulto y se explicaban por medio de causas puramente mecánicas; para los materialistas del siglo XVIII, el hombre era lo que para Descartes el animal: una máquina.	Biology was still in its swaddling clothes; plant and animal organisms had been investigated only in the rough and were explained by purely mechanical causes. What the animal was to Descartes, man was to the eighteenth century materialists—a machine.
La guerra se declara y 8 Venado ataca a Bulto Blanco y Rojo en la página 83.	War is declared and 8 Deer attacks Red and White Bundle on page 83.
A bulto, diría que el terreno mide una hectárea.	At a rough guess, I'd say the plot is one hectare.